Parasites are organisms that live in or on a host organism, obtaining essential nutrition for themselves from the host. Parasites rarely kill their hosts, however. Which explanation BEST describes why evolutionary pressures selected for parasites that do not kill the host?

Answers

Answer 1

Answer: Parasites that kill the host lose their source of nutrition or energy and would be less likely to survive.

Explanation:


Related Questions

Can I please get help?

Answers

Answer:

Technology because we don't have the necessary technology to explore the parts of space and for all we know we don't even know what the universe actual looks like or if there are alternate universes but as technology advances we will know. Explanation:

Single term algebraic expression is called?
1 Monomial
2 Binomial
3 Trinomial
4 None of these

Answers

Answer:

Monomial

Explanation:

the right answer is monomial

Hurry this is due at 11:59!!

Answers

   Answer:                                                                                                                            

Explanation:

The table compares continental and oceanic landforms on Earth. What term should be used to replace the question mark in the table? A) cavern B) trench C) plateau D) mountain

Answers

Answer:

D

Explanation:

Because these are in oceans and on land.

PLEASE ANSWER FOR BRAINLIEST

Answers

Answer:

B

Explanation:

Sickle cell anemia is an autosomal recessive trait, meaning two recessive alleles must be acquired by the child (one from each parent) for them to be affected with the disorder.

Hope this helps :) Have a good night!
Your Answer has to be B

Melanie took two identical thermometers, one with its bulb painted black and the other with its bulb painted white. She kept a lighted lamp at equal distance from the two thermometers.

Which thermometer will show a higher temperature after an hour?

Thermometer with black bulb, because black reflects less heat than white


Thermometer with black bulb, because black absorbs less heat than white


Thermometer with white bulb, because black reflects more heat than white


Thermometer with white bulb, because black absorbs more heat than white

Answers

Answer:

A

Explanation:

Answer:

A

Explanation:

What are physical/structural adaptations?

Answers

Answer:

Structural adaptations are physical features of an organism like the bill on a bird or the fur on a bear.

what is the howler monkeys biome

Answers

Predominantly inhabit rain forest ecosystems

Plsss help me with this its science
Make a general comparison of those planets closer to the sun with those farther from the sun,
based on the data below.

Answers

Answer:

Planets that are farther tend to have gas surfaces, a bigger diameter, and more moons. Planets closer to the sun have the opposite.

IF YOU ANSWER ALL THESE QUESTIONS AND THERE ARE CORRECT YOU WILL GET BRAINLEAIST
1. Which part of the flower produces sperm?
2. Which part of the flower attracts pollinators, like bees?
3.What is the name of the male reproductive organ of the flower?
4.What is the function of the stamen?
5. What holds up the stamen?
6. What are the male reproductive parts of the flower?

Answers

Answer:

1. The anther produces the pollen grains that contain the sperm needed for fertilization

2.Petals attract the pollinators.

3.Stamens are the male reproductive organ

4.The main function of the stamen is to produce the pollen grains, which house male gametes , necessary for reproduction.

5.The stamen is made up of two parts: the anther and filament. The anther produces pollen (male reproductive cells). The filament holds the anther up.

6.A stamen consists of an anther (which produces pollen, the male reproductive cell) and a filament.

please mark as brainlsit if it helps

Answer:

1. the anther

2. showy petals and sepals, nectar guides, shape, size, and color.

3. stamen

4. The pollen-producing part of a flower, usually with a slender filament supporting the anther.

5. the anther and filament

6. anther, filament, pollen

Explanation:

Reflection Questions
1. Explain how biological evolution is supported by the fossil record.
2. Why is natural selection a mechanism for biological change?
3. How does chemical evolution explain the origin of life on Earth?
4. Explain why scientific theories, such as biological and chemical evolution, represent the
strongest explanation of the changes observed in the fossil record.
5. How can scientific theories on evolution and the fossil record change over time?

Answers

Answer:

1) The word ‘evolution’ was first mentioned in the book ‘The Origin of Species’ in 1859, by Charles Darwin. Darwin put forward the concept of evolution during his journey to the Galapagos Islands. 

2)Natural selection is an important mechanism of evolution. It states that the organisms that are able to survive and reproduce with the changing environmental conditions are selected by nature while the ones that cannot survive are eliminated.

3) Evolution mainly deals with the origin of life on earth. The conditions and the forms of life on earth were entirely different from what we see today.

please forgive me I cant answer 4th one..

5)Charles Darwin, an English naturalist of the 19th century made an extensive study of nature for over 20 years. 

1. The fossil record provides crucial evidence for biological evolution. Fossils are the preserved remains or traces of past organisms, providing a record of life on Earth over millions of years.

By studying fossils, scientists can observe changes in organisms and their characteristics over time. Fossils show a progression of simpler life forms in older layers to more complex ones in more recent layers.

2. Natural selection is a mechanism for biological change because it leads to the adaptation of populations to their environments over time. It is based on the concept that individuals within a population exhibit variation in traits, and those traits that enhance survival and reproduction are more likely to be passed on to future generations.

Through natural selection, individuals with advantageous traits have higher chances of surviving and reproducing, leading to the increased frequency of those traits in subsequent generations.

3. Chemical evolution, also known as abiogenesis or prebiotic evolution, explains the origin of life on Earth by proposing that life arose from non-living matter through a series of chemical reactions.

According to this theory, in Earth's early conditions, simple organic molecules formed from inorganic compounds through processes like lightning, volcanic activity, and reactions in the atmosphere and oceans.

These molecules then underwent further reactions, leading to the formation of more complex molecules like amino acids and nucleotides, which are the building blocks of proteins and nucleic acids, respectively.

4. Scientific theories such as biological and chemical evolution represent the strongest explanations for the changes observed in the fossil record because they are supported by extensive evidence from multiple scientific disciplines.

These theories have withstood rigorous testing, scrutiny, and peer review over many years. They are based on a large body of evidence, including the fossil record, comparative anatomy, genetics, molecular biology, and observations of natural populations.

5. Scientific theories on evolution and the fossil record can change over time as new evidence is discovered, technologies advance, and scientific understanding improves.

The process of scientific inquiry involves continuous investigation, testing, and refinement of theories based on new data and observations.

As scientists gather more evidence from fossil discoveries, genetic studies, experimental research, and other fields, our understanding of evolution and the fossil record can deepen and evolve.

Know more about the fossil record:

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HYEOO PEEPS what happens when u push a triangular box back and forth on a ramp

Answers

Answer:

hi-hi,

i believe the answer is that you'll create friction and thermal heat

Explanation:

https://www.khanacademy.org/science/physics/work-and-energy/work-and-energy-tutorial/v/work-energy-problem-with-friction

this is the video i watched to help answer your question

good luck :)

i hope this helps

**please let me know if this was not what you were looking for/incorrect or both**

have a nice day!

can u plz explain the role of the digestive, endocrine, and excretory systems in maintaining homeostasis.

Answers

Answer:

Following are the roles of the digestive, excretory and endocrine systems in terms of homeostasis:

The endocrine system regulates the secretion of various hormones and homeostatic mechanisms in response to signals of the hypothalamus and pituitary glands.The excretory system maintains homeostasis by purifying the blood and getting rid of toxic waste from the  blood.The digestive system is mainly involved in the transfer and regulation of nutrients from food.

Explanation:

Role of Endocrine System:

The endocrine system mediates all the chemical signaling in the body.

Hormones are chemical messengers that the endocrine system uses to maintain chemical homeostasis.

Endocrine system manages glucoregulation by controlling the secretion of the hormones glucagon and insulin by the pancreas. Low and high blood sugar levels are sensed by the brain which then signals the endocrine system to release glucagon and insulin respectively.

The endocrine system is also indirectly involved in thermoregulation. A low core temperature signal received by the hypothalamus initiates the release of TSH by the pituitary gland and then that of T3, T4 thyroid hormones that stimulate shivering thermogenesis in the skeletal muscles.

Role of Digestive System:

The digestive system regulates the amount of nutrients absorbed in the body.

Although the absorption of nutrients in food is not exactly according to bodily needs, the absorption of dietary iron and calcium is strictly regulated by the digestive system.

Role of Excretory System:

The excretory system carries out osmoregulation which is the maintenance and regulation of water and salt levels in the blood.

The excretory system regulates the excretion of toxic waste from the blood.

Excess water, salts, urea and bilirubin (produced as a result of RBC break down) are some of the excretions.

please mark me as brainliest

Answer:

Following are the roles of the digestive, excretory and endocrine systems in terms of homeostasis:

The endocrine system regulates the secretion of various hormones and homeostatic mechanisms in response to signals of the hypothalamus and pituitary glands.

The excretory system maintains homeostasis by purifying the blood and getting rid of toxic waste from the blood.

The digestive system is mainly involved in the transfer and regulation of nutrients from food.

Explanation:

Role of Endocrine System:

The endocrine system mediates all the chemical signaling in the body.

Hormones are chemical messengers that the endocrine system uses to maintain chemical homeostasis.

Endocrine system manages glucoregulation by controlling the secretion of the hormones glucagon and insulin by the pancreas. Low and high blood sugar levels are sensed by the brain which then signals the endocrine system to release glucagon and insulin respectively.

The endocrine system is also indirectly involved in thermoregulation. A low core temperature signal received by the hypothalamus initiates the release of TSH by the pituitary gland and then that of T3, T4 thyroid hormones that stimulate shivering thermogenesis in the skeletal muscles.

Role of Digestive System:

The digestive system regulates the amount of nutrients absorbed in the body.

Although the absorption of nutrients in food is not exactly according to bodily needs, the absorption of dietary iron and calcium is strictly regulated by the digestive system.

Role of Excretory System:

The excretory system carries out osmoregulation which is the maintenance and regulation of water and salt levels in the blood.

The excretory system regulates the excretion of toxic waste from the blood.

Excess water, salts, urea and bilirubin (produced as a result of RBC break down) are some of the excretions.

Pretend your classmate has told you that they are having trouble with what succession is. How would you explain to them what succession is? How would you explain the difference between primary and secondary succession? Write your response in the textbox and submit when you are done. DO NOT GO.O.GLE YOUR ANSWER

Answers

Answer: Primary sources are original works like research, diaries, paintings, and plays. Secondary sources are reviews of original work.

What other agricultural technique was used to mitigate the pink bollworm from destroying Bt cotton crops?

Answers

Cultural Control
Eliminate the food supply for pink bollworm by cutting off irrigation early enough to stop production of green bolls by early September. Regardless of when the crop is terminated, immediately shred the cotton plants following harvest.

I hope u find it helpful

What is the difference between Hinduism and Nirvana

Answers

Answer:

The most ancient texts of Hinduism such as the Vedas and early Upanishads don't mention the soteriological term Nirvana. This term is found in texts such as the Bhagavad Gita and the Nirvana Upanishad, likely composed in the post-Buddha era. The concept of Nirvana is described differently in Buddhist and Hindu literature. Hinduism has the concept of Atman – the soul, self asserted to exist in every living being, while Buddhism asserts through its anatman doctrine that there is no Atman in any being. Nirvana in Buddhism is "stilling mind, cessation of desires, and action" unto emptiness, states Jeaneane Fowler, while nirvana in post-Buddhist Hindu texts is also "stilling mind but not inaction" and "not emptiness", rather it is the knowledge of true Self (Atman) and the acceptance of its universality and unity with metaphysical Brahman.

Explanation:

Answer:

The concept of Nirvana is described differently in Buddhist and Hindu literature. Hinduism has the concept of Atman – the soul, self – asserted to exist in every living being, while Buddhism asserts through its anatman doctrine that there is no Atman in any being.

Explanation:

If you are looking at the general pattern of temperature and precipitation for an area over time, you are looking at the ______?______

Answers

Answer:

Earth's Surface rise and climate. You are basically looking at the weather and the condition of the atmosphere.

Explanation:

When the average temperature at the Earth's surface rise, evaporation occurs more which causes precipitation to also occur more.

Answer:blue

Explanations :

Please, help me!!
Question is down below..

Answers

Answer:

CO(Carbon dioxide) is a compound because it is made up of atoms of carbon bonded to atoms of oxygen. Diatomic molecules are classified as elements because it consists of two atoms(the same kind) bonded together.

STAAR 11B
Fish in a lake have to compete for space. Different fish have different optimal temperature
ranges. The graph below shows the temperature ranges of four fish species.
Optimal Temperature Ranges
of Four Fish Species
Lake trout
Largemouth bass
Type of fish
Sunfish
Bullhead
0
5
30
10 15 20 25
Temperature (°C)
At which temperature range will there be the most competition for space among these fish species?
F 5°C to 10°C
G 10°C to 15°C
H 15°C to 20°C
J 25°C to 30°C

ANSWER:
EXPLANATION:

Answers

Answer: J

Explanation:

gene that is typically observed

Answers

Answer:

it think it is the marker gene it said that online for me I dont know

if that even is a gene

Answer:

yes

Explanation:

What is the genotype of a pea plant that's h0m0zygous for height?

Answers

Answer:

Hopefully this is something that might help!

depends on what letter you’re using but it would be one big one small, for example: Hh

Plss help me with this one for. science i can't figure this out i need help

Your team is provided with two test materials, C and D. You test the two materials using the air hockey table to collide Object A with Objects C and D. The test material objects are the same size and shape and are very similar in mass. The results are shown in the diagram. The sizes of the arrows are proportional to the acceleration.

Apply Newton’s laws to determine which of these materials is more suitable as a liner for a safety
helmet. Explain your answer.

Answers

Answer:

the annswer is b

Explanation:

just look at the questin and then see wicth one you can cross off

The three fundamental laws of classical mechanics known as Newton's laws of motion describe how an object's motion and the forces acting on it interact. The materials is more suitable as a liner for a safety helmet exists B.

What is meant by Newtons law?

The three fundamental laws of classical mechanics known as Newton's laws of motion describe how an object's motion and the forces acting on it interact. The following is a paraphrasing of these laws: Unless a force acts upon a body, it remains at rest or in continual straight-line motion. First Law of Motion of Newton Unless influenced by an imbalanced force, an item at rest stays at rest, and an object in motion keeps moving in a straight path at a constant pace.

According to the first law, unless a force acts on an object, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction forces upon one another.

The materials is more suitable as a liner for a safety helmet exists B.

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Large scale change is needed to combat climate change, but according the the author, cooperative work is best done in groups of what size?



155-300


501 and up


150 or less


301-500

Answers

You need to give us the text, how would we know what to answer if we don’t know what text were reading. All I can help you with so far is to reread the text and see what the author says
We need more context to answer this

I need info about hurricane maria (threes sentences) IN UR OWN WORDS!!!!!!!!!!!!

Answers

Answer: Was a category 5 hurricane

Regraded as the worst natural disaster to be recorded in history

Deadliest Atlantic hurricane since Mitch in 1998.

Explanation:

Answer:

Hurricane Maria was a deadly Category 5 hurricane that devastated Dominica, Saint Croix, and Puerto Rico in September 2017. Hurricane Maria was the third-costliest storm in U.S. history. It damaged or destroyed more than 300,000 homes, left 3 million people without power and caused about $100 billion in damage

Explanation:

Scott made a model of the water cycle by filling a tub with water, covering the tub with clear plastic, and placing a heat lamp over the tub. After a few days, he observed water droplets collecting on the plastic wrap.
What process formed the water droplets in Scott’s model?

evaporation
transpiration
condensation
precipitation

Answers

Evaporation ...................
The answer is condensation
water which collects as droplets on a cold surface when humid air is in contact with it.

Please help me with this

Answers

So In biology, a mutation is an alteration in the nucleotide sequence of the genome of an organism. So what would you look up that interests you

Hope This helps!!!

Omggg I have the same question T-T

im confused its more science but yah oof
Use the photo to answer the question.



The devastation from the landslide shown—the disturbed soil, the knocked-over trees, the blocked waterways and road—are evidence that the change happened Response area over time.
their is to answers rapidly or slowly

Answers

rapidly rapidly rapidly
rapidly is the correct answer.

what is the connection between chromosomes and the heavily muscled phenotype??
Uses these vocab terms or phases in the short answer response: allele, chromosomes , heavily muscled, myostatin protein

Answers

Answer: The genotype of an organism is defined as the sum of all its genes. The phenotype of an organism is the observable physical or biochemical characteristics of an organism, determined by both genetic make-up and environmental influences.

Explanation:

I need help, SERIOUS ANSWERS PLEASE
first one says IV, next one says DV, third says constants, last one says control

Answers

Answer:

Explanation:

IV= breeds of rose bushes (this is independant because you are in control)

DV= number of roses (this is what you are montiroing so it's dependant)

Constants= environment in the greenhouse

Control= roses of the same breeds outside of the greenhouse

How many consumers are omnivores in the food web below?

Answers

Answer:

1

Explanation:

Omnivores are animals that eat both plants and animals. If you look at the bottom of the food web, you need to look for arrows that point towards an animal that also consumes other animals. The arrows indicate that the energy is being transferred from the plants to the omnivore. The Raccoon is the other organism that eats both a producer (blackberries) and other predators such as garter snakes and meadow voles.

Hope this helps!! Comment down below if you have any questions and please considered marking me as brainliest!!

Answer:

1

Explanation:

Other Questions
analyze the development of the team in terms of the five-phase model and the punctuated equilibrium model. ABC Corporations CEO owns a condominium in Bahamas where top executives and their spouses stay, from time to time, for personal leisure only. The CEO pays all upkeep and other incidental expenses of the condo. Do you think the benefit provided to the top executives would be taxable or not? It is important to note that the CEO does not use any of the corporate funds to maintain the condominium. The purpose of the benefit is to reward the employees. Which theme is introduced in this exposition?Read the excerpt from The Strange Case of Dr.Jekyll and Mr. Hyde"I feel very strongly about putting questions, itpartakes too much of the style of the day ofjudgment. You start a question, and it's like startinga stone. You sit quietly on the top of a hill; and awaythe stone goes, starting others, and presently somebland old bird (the last you would have thought of) isknocked on the head in his own back garden andthe family have to change their name. No sir, I makeit a rule of mine the more it looks like Queer Street,the less I ask"O Silence is its own rewardO Real peace is found in nature.O Curiosity leads to dark truths.O Danger lurks most often at home, Embedding Quality Improvement and Service Delivery Thomas has asked you to prepare a guide on how to embed quality improvement and service delivery in organisations. The guide must include the following: An analysis of the role of leaders and managers in embedding quality improve ment and service delivery. . An explanation of the issues related to embedding continuous improvement an d service delivery and propose possible solutions. Point A(4,5) is translated to the left 3 and up 5. What is A'? PLEASE HELP THANKS----------------------------------- An object 1.50 cm high is held 2.85 cm from a person's cornea, and its reflected image is measured to be 0.170 cm high.(a) What is the magnification?multiplied by(b) Where is the image?cm (from the corneal "mirror")(c) Find the radius of curvature of the convex mirror formed by the cornea. (Note that this technique is used by optometrists to measure the curvature of the cornea for contact lens fitting. The instrument used is called a keratometer, or curve measurer.)cm 3. what is meant by maximizing the owners equity value (shareholder wealth)? why are maximizing just net income, or just profit, inappropriate goals? The leader of the British forces in the European Theater of war was ???? Douglas MacArthur Erwin Rommel Charles de Gaulle Bernard Montgomery alpha-defensins and reactive oxygen species (ros) are examples of anti-microbial molecules produced by professional phagocytes, which can function by breaking down and killing phagocytosed pathogens. True or false Don't guess!I will mark brainliest if its correct!Don't answer if you don't know!Also no links! Tell, Inc., leased a building from Lott Corp. Tell paid monthly rent of $500 and was also responsible for paying the buildings real estate taxes. On January 1, Vorn Co. and Tell entered into an agreement by which Vorn was entitled to occupy the building for the remainder of the term of Tells lease in exchange for monthly payments of $600 to Tell. For the year, neither Tell nor Vorn paid the buildings real estate taxes, and the taxes are delinquent. Learning this, Lott demanded that either Tell or Vorn pay the delinquent taxes. Both refused, and Lott has commenced an action against them. Lott will most likely prevail against Which of the following are medical facilities? (check all that apply)-Clinics-CVAC (Stoke Center)-Clinical decision unit (CDU)-Emergency department (ED)-Operating suture surgery wing (OSSW)-Urgent care center (UCC)-Urgent emergent medical care center (UEMCC)*IT IS NOT ALL OF THE ABOVE, ALREADY TRIED THAT* what is data latency? the time it takes for data to be stored or retrieved the management and oversight of an organization's data assets the person responsible for ensuring policies and procedures are implemented across the organization when a company examines its data to determine if it can meet business expectations, while identifying possible data gaps Holding demand and marginal cost constant, rank the profits a firm would expect to earn operating under each of the following market structures Which are undefined terms that can be used to define other terms?O point, segment, rayO point, line, planeO line, plane, cubeO line, ray, angle how much work must we do on a proton to move it from point a, which is at a potential of 50v, to point b, which is at a potential of -50 v, along the semicircular path shown in the figure? remember: work does no A farmer has 600m of fencing to enclose a rectangular area and divide sections as shown. a) write a equation to express the total area enclosed as a function of the length x. I b) Determine the domain and the range of this area function. The trajectory of a golf ball in a chip from the rough has a parabolic pattern. The height, in feet, of the ball is given by the equation h(x)=.15x2+3.2x, where x is the number of feet away from the golf club (along the ground) the ball is.The ball reaches a maximum height of _______ feet at a horizontal distance of ____feet away from the golf club it was hit with. The ball returns to the ground at about ________ feet away. Suppose you waited 10 years to invest in the same retirement fund and have the same $400,000 for retirement at the same 8% interest. What amount will you have to deposit each month to match the value of your annuity?