Reptiles are better suited to dry land than their amphibian ancestors because

Group of answer choices

their watertight skin minimizes moisture loss.

amphibians must lay eggs in water or in moist soil to reduce moisture loss.

reptile egg shells are harder than amphibians' eggs.

all of the choices

Answers

Answer 1

Answer:

All of the above.

Explanation:

1. Their watertight skin minimizes moistures loss: Reptiles have a reputation that they are “slimy” when we touch and hold them; however, they have dry skin, which has even fewer glands than mammals or amphibians. The main special feature of their skin is that the epidermis is heavily keratinized with a layer, which also prevents water loss.

2. Amphibians must lay eggs in water or in moist soil to reduce moisture loss: Because amphibian eggs don't have an amnion, the eggs would dry out if they were laid on the land, so amphibians lay their eggs in water.

3. Reptile egg shells are harder than amphibians' eggs: Reptile eggs are coated with a leathery or brittle coating, and the animals that hatch from them are miniature versions of the full-sized animal parent. In contrast, amphibian eggs are transparent and jelly-like. The animals that hatch from them still must go through metamorphosis.

Hope this helps you have a better understanding:) !!


Related Questions

Drosophila eye color is an X-linked trait. Red eye color is dominant, and white eye color is recessive. Which Punnett square shows a cross in which the probability that offspring will be red-eyed males is 25 percent?

A Punnett square is shown. The columns are labeled Upper X r and Upper Y. The rows are labeled x Upper R and x Upper R. Clockwise, from top-left, the boxes include: X Upper R X r, X Upper R Y, X Upper R Y, X Upper R X r.

A Punnett square is shown. The columns are labeled Upper X r and Upper Y. The rows are labeled x Upper R and x r. Clockwise, from top-left, the boxes include: Upper X r Upper X r, Upper X r Upper Y, Upper X r Upper Y, Upper X r Upper X r.

A Punnett square is shown. The columns are labeled Upper X r and Upper Y. The rows are labeled x r and x r. Clockwise, from top-left, the boxes include: Upper X r Upper X r, Upper X r Upper Y, X r Upper Y, Upper X r Upper X r.

A Punnett square is shown. The columns are labeled Upper X Upper R and UpperY. The rows are labeled x r and x r. Clockwise, from top-left, the boxes include: Upper X r Upper X Upper R, Upper X r Upper Y, X r Upper X Upper R, Upper X r Upper X Upper R.

Answers

The genotype of the mother must be heterozygous.

Punnet' square

In order to obtain a probability of 25% red-eyed males from the offspring, the mother must be heterozygous for the trait. The father can be of any genotype.

Thus, the likely genotype combination that will result in 25% red-eyed males are:

[tex]X^RX^r[/tex] x [tex]X^RY[/tex][tex]X^RX^r[/tex] and [tex]X^rY[/tex]

When you cross the first one above, the genotype of the offspring would be [tex]X^RX^R, X^RY, X^RX^r, X^rY[/tex].

The second cross will give offspring with the genotypes [tex]X^RX^r, X^RY, X^rX^r, X^rY[/tex]

Both crosses give a 25% chance of producing re-eye males.

More on Punnet's square can be found here: https://brainly.com/question/3154616

#SPJ1

Answer:The genotype of the mother must be heterozygous.

Punnet' square

In order to obtain a probability of 25% red-eyed males from the offspring, the mother must be heterozygous for the trait. The father can be of any genotype.

Thus, the likely genotype combination that will result in 25% red-eyed males are:

x

and

When you cross the first one above, the genotype of the offspring would be .

The second cross will give offspring with the genotypes

Both crosses give a 25% chance of producing re-eye males.

More on Punnet's square can be found here: brainly.com/question/3154616

#SPJ1

Explanation:

Hi you can help me? pls i dont know

Answers

Answer:

U can search on Internet.

All of these are available on internet

A potentially fatal condition with sudden onset, characterized by uremia, that can be caused by the kidneys not receiving enough blood to filter is called

Answers

A potentially fatal condition with sudden onset, characterized by uremia, that can be caused by the kidneys not receiving enough blood to filter is called Renal artery stenosis or Acute kidney failure.

The narrowing of one or more arteries that supply blood to your kidneys is known as renal artery stenosis (renal arteries).Your kidneys can't get enough oxygen-rich blood because of artery narrowing. To assist in filtering waste materials and eliminating extra fluids, your kidneys require a sufficient blood flow. Your kidneys' decreased blood flow could harm renal tissue and raise your body's blood pressure.Clogging of the renal arteries. Your renal artery walls are susceptible to plaque buildup from fats, cholesterol, and other chemicals (atherosclerosis). Larger deposits have the potential to harden, decrease blood flow, result in kidney scarring, and ultimately restrict the artery.

learn more about Acute kidney failure here: https://brainly.com/question/13129740

#SPJ4

What enzymatic features of DNA polymerase prevent it from replicating one of the DNA strands at the ends of linear chromosomes

Answers

DNA polymerase is an enzyme with a specific active site complementary to the 3' OH end of the DNA strand in terms of charge, size, orientation and shape thus can only bind to 3' end and cannot bind to 5' end for replication to occur

How many different types of gametes could an organism with the genotype aabbcc produce?.

Answers

Answer:

Thanks

Explanation:

Which of the following is NOT a step used to perform a scientific inquiry?
c. Developing a hypothesis
a. Determining manipulated and responding
variables
b. Designing an uncontrolled experiment
d. Drawing conclusions
Please select the best answer from the choices provided
A
B
C
D

Answers

B designing an uncontrolled experiment

Male primates compete through many behaviors for access to mates and to maintain social groupings. These behaviors include:

Answers

Male primates compete through infanticide, vocalizing through territorial loud calls, forming alliances behaviors for access to mates and to maintain social groupings.

What is the main reason for sociality among primates?

Protection from predators is the main motivation for social behavior. Primates are preyed upon by a variety of predators.

Like humans, many nonhuman primates also socially interact in large groups, grooming, mimicry, cooperative foraging, differentiated affiliative relationships, ritualized courtship and mating behavior, and competitive interactions governed by social dominance are just a few examples of the social behaviors that these nonhuman primates exhibit (10, 11).

Male-female couples, one-male/multiple-female groups, and solitary groups are other types of monkey social organization.

Learn more about primates here:

https://brainly.com/question/6586027

#SPJ4

The constant turnover of body tissues requires the ______ supplied by carbohydrates, proteins, and lipids

Answers

Chemical energy

The constant turnover of body tissues requires the chemical energy supplied by carbohydrates, proteins, and lipids.

What is turnover?

The definition of turnover is the equilibrium between cell proliferation and death that supports the homeostasis of cells and tissues.

How does the body get energy?

Respiration is the process through which the human body produces energy by breaking down complex organic molecules like those found in carbohydrates, proteins, and fats. Energy is released during respiration in the form of ATP, which is then utilized for various metabolic processes.

Carbohydrate molecules are the main source of energy, followed by lipids. Some of the molecules' existing amino acids are used as a source of energy when all the available fats and carbs are used during respiration.

Learn more about energy production here:

https://brainly.com/question/14937144

#SPJ4

CD4 cells are Group of answer choices Infection-fighting white blood cells. Oxygen-carrying red blood cells. Strengthened and multiplied by HIV. Rare in African and European populations

Answers

CD4 cells are infection-fighting white blood cells.

What are CD4 cells?

White blood cells called CD4 cells also referred to as T cells, are crucial components of your immune system because they combat infection. When a person has HIV, their CD4 count is used to determine how well their immune system is functioning (human immunodeficiency virus).

HIV not only attacks CD4 cells but also makes use of them to spread the infection. HIV uses the CD4 cells' capacity for viral replication to kill CD4 cells by producing more of the virus. The CD4 cells ultimately enlarge and explode as a result of this. HIV weakens the immune system by destroying CD4 cells.

Learn more about CD4 cells here:

https://brainly.com/question/2396517

#SPJ4

What are Characteristics of multicellular organisms?

Answers

Answer:

Definition

Multicellular organisms are organisms which are composed of more than one cell, with groups of cells differentiating to take on specialized functions. For example: human cells, plant cells, fungal cells (except yeast) and cells of protoctist such as plasmodium.

CharacteristicsMade of more than one cell and are complex organisms.Visible to the eye.Possess distinct organs and organ systems.They are eukaryotes (contain nucleus) cells.Their cells exhibit division of labour.Size increases with the number of cells in an organism.

Made of more than one cell
Can see it with your eyes
They are eukaryotes

1. Food
2. Clean water
3. Waste management

Which of the resources above do you believe would be the most difficult to reproduce once it runs out? Why do you think this is?

Answers

Waste management would be the most difficult to reproduce once it runs out. Thus, option "C" is the answer.

What is waste management?

Waste management~ includes the activities and actions required to manage waste from its inception to its final disposal. This includes the collection, transport, treatment, and disposal of waste, together with monitoring and regulation of the waste management process.

For example, Incineration is the process of burning of solid wastes. It is one of the processes of solid waste management. In this process, combustion of organic and inorganic wastes takes place that leads to the formation of ash, heat and flue gases. Ash is composed of inorganic constituents.

The heat generated during this process can be used to generate electricity. The process is carried out by Incinerators. Incinerators does not completely replace landfilling but it reduces the volume of disposal of wastes.

Thus, option "C" is the answer.

To learn more about Waste management click here:

https://brainly.com/question/20368258

#SPJ1

david decided to modulate his blood glucose level by increasing fiberintake. what will be the least effective food

Answers

The least effective food would be corn flakes to modulate blood glucose level as it has the least amount of fiber.

Fiber :

Fiber is a type of carbohydrate which the body can’t digest. Although fiber cannot be converted into glucose, the sugar that results from the breakdown of most carbs, fiber travels through the body undigested. In order to control appetite and blood sugar levels, fiber helps the body consume glucose in a more controlled manner.

Constipation, diverticular disease, heart disease, diabetes, and other illnesses all seem to be at a reduced risk when fiber is consumed. In the gut microbiota, fiber has a positive role that may have anti-inflammatory effects that reduce the chronic inflammation linked to various illnesses.

Learn more about fiber here :

https://brainly.com/question/18557913

#SPJ4

A fetus develops in such a way that the type II cells of the lungs never develop, resulting in no production of surfactant in the alveoli. The fetus continues development and survives to birth. What will happen when the newborn tries to take its first breath

Answers

Due to the high surface tension, the lungs remain crushed and you will not be able to breathe first.

During fertilization, the sperm and egg combine in one of the fallopian tubes to form a zygote. The zygote then descends the fallopian tube into a morula. Upon reaching the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the inner wall of the uterus. This is a process called implantation.

The prenatal development process occurs in three major stages. The first two weeks after conception are called the germination period, the third to eighth weeks are called the fetal period, and the period from the ninth week to birth is called the fetal period.

Learn more about Fetus Development here: https://brainly.com/question/1311741

#SPJ4

Hydras and jellyfish both live in a freshwater lake that is slowly being acidified by the runoff from a chemical plant built upstream. Which population is predicted to be better able to cope with the changing environment

Answers

Answer:

Hydras

Explanation:

Algae support hydras because they provide hydras oxygen. Hydras have regenerative ability; they do not appear to die of old age, or to age at all. But sometimes, disease, predators and water contamination kill off hydras before they can achieve "immortality".

Jellyfish need to stay in the water to survive. They get their oxygen from their really thin skin. In some cases, it has been found that jellyfish have an immune system that presents bacterial-specific responses.

In the absence of an adaptive immune system, Hydra polyps employ an elaborate innate immune system to detect and interact with microbes using their two cell layers as efficient defense barriers, making them survive longer or have better defense against the chemicals.

Also take into consideration, what chemicals/acids are being put into the lake and the "age" of the hydra/jellyfish.

Cells in the thyroid gland produce and secrete thyroid hormone (a polymer of amino acids) that helps to regulate metabolism. What organelle is most likely abundant in cells of the thyroid gland?

Answers

Rough Endoplasmic Reticulum (RER) organelle is most probably prevalent in thyroid gland cells.

Rough Endoplasmic Reticulum (RER)RER is a cell organelle that is in charge of protein synthesis as well as the cellular transport of protein-containing vesicles.It consists of cisternae, tubules, and vesicles. The cisternae are comprised of flattened membrane plates that participate in polypeptide processing.Ribosomes, which are protein production sites, wrap the rough endoplasmic reticulum (RER) membranes.The RER produces the majority of enzymes and cell membrane proteins.RER is abundant in organs and cells which release enzymes, including the pancreas.

Learn more about rough endoplasmic reticulum (RER) here:

https://brainly.com/question/13118914

#SPJ4

Which of the following best describes habituation?

A. A change in response that stems from experience
B. An association between two events in the environment
C. An involuntary response to intermittent stimuli
D. A permanent change in behavior

Answers

a. a change in response that stems from experience is the correct answer i believe
Yes works is a word and yeah

In which phase of a sigmoid
growth curve does the
population grow rapidly at
its maximum biotic
potential?
OA. Transitional
B. Plateau
OC. Exponential
D. Lag

Answers

The phase in which there is rapid growth at its maximum biotic potential is the exponential phase. Option C

What is the  sigmoid growth curve ?

The sigmoid growth curve shows the gradual rise in the population of organisms in a habitat under a defined set of conditions. There is an initial exponential growth, followed by a plateau and a lag phase.

The phase in which there is rapid growth at its maximum biotic potential is the exponential phase.

Learn more about sigmoid growth curve:https://brainly.com/question/4554397

#SPJ1

I examine all the coding sequences in Diceros bicornis (Black rhinoceros) and identify each codon that translates into threonine with the following results: 25% ACA, 25% ACC, 25% ACT, 25% ACG. This results supports the conclusion that _______________.

Answers

I examine all the coding sequences in Diceros bicornis (Black rhinoceros) and identify each codon that translates into threonine with the following results: 25% ACA, 25% ACC, 25% ACT, 25% ACG. This results supports the conclusion that there is no codon usage bias.

The term "codon use bias" describes variations in the frequency at which synonymous codons appear in coding DNA. A codon is a group of three nucleotides that codes either the end of translation or a particular amino acid residue in a polypeptide chain.The occurrence of specific codons being used more frequently than other synonymous codons during the translation of genes is known as codon use bias, and its severity varies between and within species.here, each codon translating into threonine is in equal proportion ie, 25%. 25% ACA, 25% ACC, 25% ACT, 25% ACG indicate that the codons are used in equal proportion and thus there is no codon usage bias in Diceros bicornis.

learn more about codon usage bias here: https://brainly.com/question/15339928

#SPJ4

P.H. has had a major stroke affecting her occipitotemporal pathway. When a picture of a hammer is placed in front of P.H., she is unable to identify it. How can you determin

Answers

To determine if her difficulty is in recognizing the object or in simply remembering its name, one can ask her to demonstrate the use of the object rather than identifying it.

The visual system is special because the retina of the eye houses much of the visual processing that takes place external to the brain. The retina, optic nerves, optic chiasm, optic tracts, lateral geniculate bodies, optic radiations, and visual cortex make up the visual pathway. T There are several physiological traits that the various cortical regions in the occipitotemporal circuit have in common. All regions of the pathway have populations of cells that are sensitive to the form, color, and/or texture of visual inputs, which is consistent with a role in object recognition.

learn more about visual system here: https://brainly.com/question/19796591

#SPJ4

the spinal cord is made up of

Answers

Answer:

spinal cord is made up of = 33bones called vertebrae

the meninges along with the cerebrospinal fluid that circulates in between each meningeal layer function by

Answers

The meninges, along with the cerebrospinal fluid (C.S.F.) that circulates in between each meningeal layer, function by: serving as shock absorbers for the brain and spinal cord.

Meninges :

The meninges are the three membranes which envelop the brain and spinal cord and separate them from the walls of their bony cases (skull and vertebral column). Meninges are classified as either spinal meninges, which encase the spinal cord, or cranial meninges, which surround the brain.

The major function of the meninges is to protect the brain and spinal cord from mechanical stress, to support the blood vessels and to create a continuous canal through which cerebrospinal fluid (CSF) flows.  The innermost meningeal layers (arachnoid and pia), collectively known as the leptomeninges, are where the cerebrospinal fluid (CSF) travels.

Learn more about meninges here :

https://brainly.com/question/14082093

#SPJ4

Infections caused by a normally nonpathogenic organism often affecting individuals who have a decreased immune system or are elderly are:

Answers

Infections caused by a normally nonpathogenic organism often affecting individuals who have a decreased immune system or are elderly are opportunistic infections.

What is opportunistic function?

a disease-causing organism other than one that ordinarily causes infection. People with compromised immune systems are more susceptible to opportunistic infections.

What are the common opportunistic infection?

Several of the most typical OIs among Americans with HIV include: Infection with the herpes simplex virus type 1 (HSV-1), a virus that can lead to mouth and lip sores. Salmonella infection is an intestinal bacterial infection.

Learn more about infection here:

https://brainly.com/question/16416932

#SPJ4

If a person is HIV positive, why does he or she need to eat 10% more calories than
do his or her noninfected counterparts?

1. HIV-positive people have a high red blood cell count.
2. HIV-positive people have a low red blood count.
3. HIV-positive people use less energy.
4. HIV-positive people use more energy

Answers

HIV-positive people use more energy. Thus, option "D" is correct.

Why HIV-positive people use more energy?

These extra calories are needed by people with HIV because their immune system is constantly fighting off the HIV virus.

This is because HIV attempts to evade the infection even as the immune system attempts to eradicate it. The extra calories give the immune cells, which are extra strained, the energy to perform their functions.

Thus, option "D" is correct.

To learn more about HIV-positive click here:

https://brainly.com/question/25534600

#SPJ1

Select the pituitary hormone that increases the concentration of blood sugar A. cortisol B. growth hormone C. glucagon AND. epinephrine E. insulin

Answers

The tragus is a small pointed eminence of the external ear, situated in front of the concha, and projecting backward over the meatus. It also is the name of hair growing at the entrance of the ear.

Sam is studying the interaction between porcupines, pinion pine trees, and pine bark beetles. Over the course of his study in Colorado, he observes the behaviors of 25 porcupines, records the location of 151 pinion pines, and traps 332 beetles. How many populations does his study include

Answers

Sam is studying the interaction between porcupines, pinion pine trees, and pine bark beetles. Over the course of his study in Colorado, he observes the behaviors of 25 porcupines, records the location of 151 pinion pines, and traps 332 beetles.

His study include 3 populations

Population ecology is the study of the factors influencing the number and distribution of animal and plant populations. The study of the development, control, and interactions of animal populations is known as animal population ecology. A population's growth may be significantly influenced by the behavior of its constituent individuals, and the presence of predators, prey, and competitors in the community will also have significant effects. The population is a level of organization that lies between individuals and communities, but there is no clear distinction between the phenomena that affect these levels and those of the population.Here Sam studies 25 porcupines, records the location of 151 pinion pines, and traps 332 beetles. hence 3 populations are being studied here.

learn more about Population ecology here: https://brainly.com/question/1437549

#SPJ4

Use the meanings of the prefixes and suffixes in the table to form words that will match these definitions

Answers

In this question we use the meanings of the prefixes and suffixes in the table to form words that correspond to these definitions.

What is the form words that correspond to these definitions?

1. microbiology

2. zoology

3. hydrology

4. aquatic

5.microsheet

6. intracellular

7. microseed

8.phototropic

9. arthrosis

10. unicellular

1) bacteria

2) synthesizes the organic part of the cellular matrix

3) defense phagocytic cell

4)image magnification tool

5) true cells

6) order of genetic descendants

7) process of obtaining energy from plants

8) living beings that produce their own food

With this information, we can conclude that The prefix and suffix are morphemes, also called affixes, which are used with word stems to form a new word that takes on a new meaning.

Learn more about prefix and suffix in brainly.com/question/8406910

#SPJ1

Use the internet to find out more about kidney machines and kidney transplants . how is the donor's kidney tested to see whether it is suitable? why is rejection of the new kidney a problem and how is it dealt with?

Answers

Answer:

The kidney is tested to see whether it is suitable for donation by checking for diseases and conditions that could make it unsuitable for transplantation.

The rejection of the new kidney is a problem because it is not able to remove waste from the blood properly. The nephrons inside the kidney are not able to filter the blood properly and the waste accumulates in the body. The body then has to find a way to remove the waste and this can be done through dialysis or a transplant.

Explanation:

In order to test the implications of early emotional bonding, scientists have done testing on infant emotionality by separating animal babies from their natural mothers, allowing them to be raised by another of their same species. This testing strategy is called:

Answers

In order to test the implications of early emotional bonding, scientists have done testing on infant emotionality by separating animal babies from their natural mothers, allowing them to be raised by another of their same species. This testing strategy is called Cross fostering

Transfer of children between mothers is known as cross-fostering. This method is used to distinguish between environmental and genetic impacts on behavior. Transferring some freshly born or hatched young of species A from their mother nest to the nests of species B is the primary process of cross-fostering.A behavior can be proven to have a genetic foundation if cross-fostered offspring have a behavioral attribute that is distinct from that of their foster parents and similar to that of their biological parents. Similarly, environmental variables are proven to be dominating if the offspring exhibits qualities that are different from those of their biological parents and comparable to those of their foster parents.There is frequently a combination of the two, demonstrating both genes. This can be utilized in selective livestock breeding to combine desirable genetic traits like weight, fat distribution, or looks with ones that are influenced by the environment, like temper.

learn more about Cross fostering here: https://brainly.com/question/8908083

#SPJ4

A high tide will occur A usually only once in a 24-hour period B only in bodies of water close to the moon C on both sides of the earth at the same time D when proximity to the sun makes the days longer

Answers

A high tide will occur on both sides of the Earth at the same time, the correct option is C.

What is a high tide?

The tidal force causes Earth and its water to bulge out on the sides closest to and farthest from the moon. These water bulges are high tides.

The Moon's gravitational pull is pulling on the Earth and the ocean on the sides facing the Moon. The Earth compensates for the Moon's pulling by bulging out both toward and away from it.

Thus, the correct option is C.

For more details regarding high tide, visit:

https://brainly.com/question/14683300

#SPJ1

Which phase of the menstrual cycle is characterized by the formation of new glands, thickening of the endometrium, and infiltration of blood vessels

Answers

The given events occur in the Follicular or proliferative phase of menstrual cycle.

What is proliferative phase?

1st part of the menstrual cycle occuring after menstruation.Occurs between 5-13 days of the cycleDuring this phase, the endometrium thickens due to increasing levels of estrogen from the ovarian follicles.Epithelium proliferates, there is a formation of new endometrial glands and infiltration of blood vessels.

Learn more about the menstrual cycle here:

https://brainly.com/question/1483249

#SPJ4

Other Questions
g A solution is made by dissolving 0.0550 moles of Ba(OH)2 in enough water to make 325 mL of solution. What is the pH of the resulting solution According to the cognitive appraisal model, a person who got married, had a baby, and started a new job all within a year may have a _____ score on a stress scale than someone whose mother had a serious illness in the past year. Write a short dialogueboth sides of the conversationin Spanish between you and your classroom friend Celeste in complete sentences. Use the vocabulary from this lesson and the following suggestions as a guide for your answer: You may copy and paste the accented and special characters from this list if needed: , , , , , , , , , , , , , , *Note: The sample sentences/questions in parentheses are just a guide to help you form your sentences/questions. You must come up with your own original answers keeping academic integrity intact.Greet your friend and ask how she is doing in one sentence. (e.g., Hi, how are you?)Have your friend respond how she is doing and ask you how you are doing. (e.g., I am well, thanks, and you?)Respond to your friend that you are well, in one sentence. (e.g., I am well, thanks.)Give a farewell. (e.g., See you later.) Please help!!! Suppose we have two functions... what trait describes to do or achieve something Carlos and Fernando (not) ----------weavy. "Character is what you are in the dark."-Dwight Lyman MoodyWrite the thesis statement for your essay. Help Can someone please explain what an outlier is? it keeps popping up in all of my math questions and it is really confusing me... If a population has relatively few individuals in the young classes, but many in the medium-aged and old classes, what can we conclude about population growth does anyone know how to do these?? There is a hole in the bottom of the boat water quickly. It ............. (sink). I am going to study at school now. Which tence is the sentence written? Select the tool that is called the beaker. Which term describes the set of all possible input values for a function? O A. Range OB. Input O C. Output OD. Domain SUBMI Combine the radicals 47+328.O 107O470 -271014 What two branches of government did the Articles of Confederation fail to establish? how much is 0.54/0.2 Which of the following could be the ratio between the lengths of the two legs of a 30-60-90 triangle?Check all that apply. Retype the below code. Fix the indentation as necessary to make the program work. if 'New York' in temperatures: if temperatures['New York'] > 90: print('The city is melting!') else: print('The temperature in New York is', temperatures['New York'])else: print('The temperature in New York is unknown.')Sample output with input: 105The city is melting!Perferred in Python A sky diver, mass 90 kg, reaches a terminal velocity of 60 m/s. What is the approximate magnitude of the force of air resistance?.