Chapter 1 biology the science of life

Chapter 1 Biology The Science Of Life

Answers

Answer 1

Answer: Unsure

Explanation:

Just doing this for the points

Answer 2

Answer:

grade 9 biology 2021 all chapter


Related Questions

Members of a population interact with other populations
in a community, and compete to obtain the matter and
energy they need for basic resources, mates, and territory.
O True
O
False

Answers

Answer:

0000

Explanation:

. As the volume of the cell increases, how does the surface area to volume ratio (SA/Ve) change?

Answers

Answer: Well, you see, As the cube size increases or the cell gets bigger, then the surface area to volume ratio - SA:V ratio decreases. ... When a cell grows, its volume increases at a greater rate than its surface area, therefore it's SA: V ratio decreases.

Explanation:

which of these are claims of pseudoscience most likely based on?
A. Critical Thinking
B. Logical Reasoning
C. Controlled Experiments
D. Creative Imagination

Answers

Answer: I think the answer is creative imagination

Explanation:

The definition of pseudoscience is:

a collection of beliefs or practices mistakenly regarded as being based on scientific method.

Here is something I found online

A pseudoscience is a fake science that makes claims based on faulty or nonexistent scientific evidence. In most cases, these pseudoscience present claims in a way that makes them seem possible, but with little or no empirical support for these claims. Graphology, numerology, and astrology, are all examples of pseudoscience.

Worksheet 5 Cell Division for students answerkey from umuc

Answers

Answer:

binary fission,meiosis and

mitosis,

4. Adaptive radiator

different habitats and few competitors, thus diversifying rapidly into several new

O True

O False

5.

increases the frequency of adaptive mutations in a population over time.

(select only one answer)

O Fitness

O Natural selection

Artificial selection

Adaptive radiation

6. Any change in allele frequencies in a gene pool is called

2

(select only one answer)

natural selection

Answers

Answer:

The correct answer is-

4. true

5. Natural selection

6. microevolution

Explanation:

Adaptive radiation is a cycle where living beings diversifying rapidly from a familial or an ancestral species into a huge number of several new types, especially when there are new environmental aspects present such as different habitats and few competitors.

Thus, it is a true statement.

Natural selection is the cycle through which a population or a species of living beings adjust and change over the period of time.  natural selection just acts upon the heritable attributes of a population by choosing for advantageous alleles or and in this manner increasing the frequency of these adaptive alleles in the population.

Thus the option Natural selection is correct.

Changes inside a genetic pool from happening to one generation to another is known as microevolution. Allele frequencies in a population may change because of, natural selection, mutation, genetic drift, and genetic flow.

Thus, the correct answer is - microevolution.

7. If a growing child has deficient production of pituitary secretions, this child would
a. Develop acromegaly
b. Become a dwarf
C. Mature sexually at an early age
d. Be in constant danger of becoming dehydrated

Answers

Answer:

b. Become a dwarf

Explanation:

A decreased secretion of growth hormone can result in pituitary dwarfism which then decreases the rate of cell division of cartilage cells in the epiphyseal plate

How is the structure of a unicellular organism different than the structure of a multicellular organisms? How does this affect function

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Since cells have specific functions and capabilities, unicellular organisms have less capabilities and more or less have one job. Functions are reduced with unicellular. Humans, for example who are multicellular, have functions for cell regeneration, clotting, nerves, etc and therefore have a longer list of functions that unicellular organisms like bacteria

13. The differences between two molecules include the type of sugar that
forms a section of the molecules and the identity of one of the four
nitrogenous bases that make up another section of the molecules. These
two molecules are - *

Answers

Answer:

DNA and RNA are the molucules

Explanation:

PLEASE HELP MEH!!!!

A patient’s blood is tested for growth hormone which has a molecular mass of 848.952 g/mol. The test results show a normal concentration of 4 . 0 × 10 − 6 g/L. How many moles of growth hormone are in 1 L of blood?

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30 g molecular concrete

Can somebody help me ASAP , I’m timed!

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Answer:

B.

Explanation:

B. carbon decays relatively quickly.

The guy above me is right

what will happen if there is no mitrochondria in a cell

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Without mitochondria (singular, mitochondria), higher animas would most likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a proved much less efficient that aerobic respiration.

Martin has a very low tolerance for alcohol- two beers and he's falling down drunk. this is likely at least partly linked to a small amount of which organelle in his cells? a) smooth endoplasmic reticulum b) lysosomes c) mitochondria d) rough endoplasmic reticulum e) Golgi apparatus

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Answer:

is it okk

Explanation:

The lysosomes are the cellular organelles containing the hydrolytic enzymes which help in the metabolism of the complex and toxic compounds. The alcohol which is consumed is degraded and digested by the lysosomes which decrease the rate of digestion of the other complexes like the proteins. This decreased lysosomal activity leads to liver damage.

here is your answer

A conveyer belt moves a 40 kg box at a velocity of 2 m/s. What is the kinetic energy of the box while it is on the conveyor belt?

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I have no idea tbh I just want points sorry not sorry

How can there be so many similarities between organisms, but also so many different types of plants, animals,
and microorganisms?

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Answer:

Many of the similarities between organisms are the result of inheritance: organisms inherit features from their ancestors which they often use in similar ways. ... Other similarities occur because organisms at all places and times face similar problems: finding mates, avoiding predators, obtaining food.

Explanation:

Answer:

not all organisams are diffrent,just know that.

Explanation:although there might be diffrent speices they can still be in like the same organizam

in summer, what happens to the hurricane’s temperature, category, and speed as it travels across a body of water and then land?

Answers

I think it starts to get slower as soon as it starts traveling because then hurricanes wouldnt be as bad and would be long, and it could possible get worse as it travels across the water because it could be sucking up water so then it would get bigger and worse. The tempertaure will get colder because it will then start to pour and cause destruction and make it windy and very chilly.

In summer the temperature of hurricane will get colder because it will then start to pour and cause destruction and make it windy and very chilly and  it could be sucking up water so then it would get bigger and worse.

What is hurricane?

Hurricane has been defined as the conditions which has been expected in a specified area. As defined by National Oceanic and Atmospheric Administration (NOAA), it means that hurricane conditions (sustained winds of 74 mph or greater) are possible within your area and hurricane warnings means hurricane conditions are expected in an area.

The warm ocean water allows more water to get evaporate and this gives more power for the Hurricane to began. Powerful winds clash as a result of the air to move towards upwards which has light wind around the area allows it to start moving round and round with this whole process continues to make the Hurricane powerful and faster.

Therefore, In summer the temperature of hurricane will get colder because it will then start to pour and cause destruction and make it windy and very chilly and  it could be sucking up water so then it would get bigger and worse.

Learn more about hurricane on:

https://brainly.com/question/2835662

#SPJ2

What are the three categories of protists, and by which characteristics are they classified?

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Answer:

Animal-like protists, Plant-like protists, and Fungi-like protists.

Organism's mode of reproduction, method of nutrition, and motility.

Fun Fact - Mushrooms and other fungi release an incredible amount of spores into the atmosphere every year, and contributing up to 50 million tonnes of particulates.

Carbon has 6 protons and 6 neutrons for an atomic mass of 12. But there are a some carbon atoms have 8
neutrons (instead of 6). These carbon atoms have a mass of 14 (instead of 12).
What term refers to the fact that in any type of atom some of those atoms have different numbers of neutrons?
Select one:
a. ions
O b. isotopes
O c. neutrons

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Answer:

isotopes

Isoyopes are element having same atomic number but different atomic mass

What are the Five characteristics of life

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Answer:

The five characteristics of life are

Cells.

Obtain and Use Energy.

Reproduction.

Respond to the Environment.

Adapt/Evolve.

Explanation:

what plays a key role in stimulating appetite and enabling us to taste food

Answers

Answer:

taste bud is the one that stimulate appetite and enable us to taste

Explanation:

because without the taste bud, we won't know that a particular food contain ions, acids and base

Is DNP and cyanide an inhibitor of cellular respiration?

Answers

Answer: Yes.

Explanation:

DNP and cyanide are both cellular respiration inhibitor.

Cyanide is a neurotoxin that can prevent cellular respiration by it's inactivation activity on mitochondria enzymes called cytochrome oxidase.

DNP (2,4-Dinitrophenol is a chemical that inhibit cellular respiration. It help to shuttle proton across cell membranes of living cells by spreading the proton along along the mitochondria and collapsing the force that produced energy for the cell activities.

What step of the scientific method immediately follows "state the problem"?
A. Draw conclusions.
B. Make observations.
C. Form a hypothesis.
D. Design an experiment.

Answers

Answer:

c

Explanation:

before you can do a, c, or d you must form a hypothesis to be tested.

I would like to know your opinion:
Suppose that you and your spouse held frozen embryos at a private fertility clinic and that you knew you would never need them. Would you donate them for stem cell research? Why or why not?

Answers

What’s your overall point

What is the internal and external adaptation in a leaf for photosynthesis? Please give a clear short answer (prefer in bullet points). I will give brainliest to fastest answer

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Answer:

They are adapted for photosynthesis by having a large surface area, and contain openings, called stomata to allow carbon dioxide into the leaf and oxygen out. ... The cells inside the leaf have water on their surface. Some of this water evaporates, and the water vapour can then escape from inside the leaf.

Answer:

▪︎leaf with large surface area

▪︎dark coloured leaf for maximum sunlight absorbtion

▪︎has stomata openings to allow carbon dioxide diffuse in the leaf

▪︎It has the green pigment :chloroplast inside to absorb sunlight

Without leaves green plants could not

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Answer:Without leaves green plants could not live.

Explanation:because from leaves a plant take breath or do respiration. In leaves of plants there are small pores or stomata from where they breathe. So if we can't breathe we can't live.so,Without leaves green plants could not live.

A scientist is observing a eukarotic cell and a prokaryotic cell. Which structure could she only observe in the eukaryotic cell? cytoplasm DNA ribosomes a nucleus

Answers

Answer:

D. a nucleus

Explanation:


2. What is the function of the cell membrane?

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Answer:

it protects the cell. it act as a receptor. it regulates the transport of substancesit receives chemical messenger from other cells.

How could these objects be classified: steak knife, screw, and saw blade? A. Objects made of metal B. Objects used for cutting C. Objects used to sew clothing D. Objects with handles​

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Answer: A.

Explanation: They are all made of metal

Specific steps for big 5

Answers

Answer:

study diligently, often pray according to beliefs, often read, do not delay homework, and ask permission from parents to always be blessed

please explain the interactions and interdependence of organisms within a biosphere. please provide me with a different example on these interactions and interdependence in the picture below. include nonliving organisms an illustrate why they are essential organisms

Answers

Answer:

The interactions, between organisms, is like humans talking

humans. The interactions are the animals

drinking the water, walking on the ground, climbing

trees, and more.

Explanation: Got it right :)

Which statements are true of a scientific theory but not a hypothesis? It is supported by multiple experiments. It has a strong predictive quality. It is a more general explanation for how or why certain phenomena occur. It is a tentative explanation. It is a falsifiable statement.

Answers

Answer: it is supported by multiple experiments

It has a strong predictive quality

It is a more general explanation for how or why certain phenomena occur

Explanation:

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