Why was natural selection an important contribution to the theory of evolution?
It proved that evolution is true.
It explained how evolution works.
It summarized the process of evolution.
Olt highlighted the main points of evolution.

Answers

Answer 1

Answer:

It explained how evolution works

Explanation:

Answer 2

Answer:

It's C

Explanation:


Related Questions

in predation, the animal that is hunted and eaten is the?

Answers

Answer:

The answer is The Prey

Explanation:

Took a quiz

Answer:

prey

Explanation:

What is the purpose of a trophic pyramid?

Answers

Explanation:

An ecological pyramid (also trophic pyramid, Eltonian pyramid, energy pyramid, or sometimes food pyramid) is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.

What are examples of two
species dividing up the parts of a habitat?

helpppp plzzzz​

Answers

Answer:

In a hot spring in Kamchatka, Russia, the two groups of genetically indistinguishable microbes parted ways. They began evolving into different species—despite the fact that they still encountered one another in their acidic, boiling habitat and even exchanged some genes from time to time, researchers report.

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Arrange the tiles to show the sequence of events in the development of the theory of evolution.
Scientists examined evolutionary
relationships using DNA sequencing.
Scientists collected fossils that
showed species changing over time.
Mendel proposed laws for
how traits are inherited.
Darwin collected specimens
from around the world
during the HMS Beagle voyage.
Darwin proposed the theory of
evolution by natural selection.

Answers

Answer:

Explanation:

Here is the summary;

In 1817 his father collected later, in1828 Alexandre Brongniart's son (Scientists) collected fossils that showed species changing over time.

Between 1831–36 Darwin collected specimens from around the world during the HMS Beagle voyage

In 1859 Darwin proposed the theory of evolution by natural selection

Between (1856-1863), published in 1865 Mendel proposed laws for how traits are inherited.

Scientists examined evolutionary relationships using DNA sequencing.

The messages that scientists are sending into space are directed at intelligent alien life. Do
you think this is limiting? How could this affect scientists search for life beyond Earth?

Answers

Answer:

I think there is life beyond earth. Actually there most definently is. I think in  a way it could be limiting. It's the fcat that the ones out there may not even be able to receive the message as fast as we please. Who knows, it could be years, decades, maybe centuries before they make actual contact with us. Then again, maybe they already have. But, the way this could affect the study is the fact that (I doubt it) but maybe a message could be sent the wrong way, or they misinterpret it. That's the only think I can get off. Anyway, this can also depend on how much funding is going into space. This also brings up the question, "How much do we know about our own planet?

What are the key features of a tundra?

A. cold winter, thin acidic soil, evergreen trees

B. many evergreen trees, short moist summers, long snowy winters

C. long cool summers, short dark winters, migrating animals

D. treeless, permafrost, cold dark winters

Answers

Answer:

D. treeless, permafrost, cold dark winters

Explanation:

The correct answer would be D

Tundra is a habitat in which tree growth is hampered by cold temperatures and short growing seasons. Therefore, option (D) is correct.

What is a tundra?

The freezing temperatures and short growing seasons of a tundra biome make it difficult for trees to develop in this sort of ecosystem.



Most of the time, it is cold, but in the summer, it can get quite warm. The winters on the tundra are long, dark, and very cold. For six to ten months of the year, temperatures are below 0 degrees Celsius. Because the temperatures are so low, there is a layer of frost below the surface. This is a layer of frozen ground.

Arctic tundra is found above the Arctic Circle in Alaska, Canada, Russia, Greenland, Iceland, and Scandinavia, or in Antarctica. Alpine tundra are high on mountains where nightly temperatures are below freezing.

Therefore, option (D) is correct.

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Why testes is extra abdominal in position in man ?​

Answers

Extra-abdominal position means that the testes hang outside the abdomen and are not in it. This is important because the sperms in the testes are very susceptible to high temperatures - meaning that they can easily die due to high temperatures like what we have within the abdomen

Skin color, fur color, and height are examples of which inheritance pattern?

A. Mendelian inheritance
B. incomplete dominance
C. codominance
D. polygenic inheritance

Answers

Answer:

D

Explanation:

Skin color, fur color, and height are examples of polygenic inheritance. Thus option D is correct.

What is polygenic inheritance?

Polygenic inheritance is defined as a type of heredity where the trait is created by the interactions of many genes, as opposed to monogenic inheritance where the phenotype is created by the expression of just one gene.

When numerous separate genes have an additive or comparable effect on a single quantitative characteristic, this is known as polygenic inheritance.

Multiple gene or multiple factor inheritance are other names for polygenic inheritance.

The some of the characteristics are since epistasis is not at play, the expression of one gene is not obscured by the existence of the other genes. There are no dominant or veiled genes; the gene involved in polygenic inheritance is either contributing or non-contributing.

Thus, skin color, fur color, and height are examples of polygenic inheritance. Thus option D is correct.

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Which of the following provides the best evidence that the circulatory system and the respiratory system work together to carry out their functions?
A : Nutrients are absorbed into the blood from the intestines.
B : Lungs expand and contract through movements of the diaphragm.
C : New red blood cells are generated in the marrow of bones.
D : Gases exchanged in the lungs are carried by the blood.

Answers

Answer:

D

Explanation:

Your first order of business should always be to see which answers involve both of the systems. A has the circulatory system (blood) but no respiratory system (intestines are the gastrointestinal system), B has the respiratory system (the lungs) but no circulatory system, C has the circulatory system (new red blood cells) but not the respiratory system (bones are the skeleton), and that just leaves D, so it has to be the answer. When you look at it to check, it includes both systems, as the lungs are part of the respiratory system and the blood is part of the circulatory system.

answer this question

Answers

technically its not even a question but idk. whats up?

Match the function to the structure or gland

Answers

Answer:

hypothalamus

Explanation:

Answer:

Hypothalumus - Part of the brain that helps to regulate the endocrine system

Thymus-  Helps children develop a strong immune system

Pituitary- Regulates growth, water balance, and blood pressure

Thyroid- Regulates metabolism

Explanation:

I got it right

A. 25%
B. 50%
C. 75%
D. 100%

Answers

The Answer is A

Hope this helps

Cattle live in an area where the streams are dry. For which basic need do these cattle most likely compete?

a food
b shelter
c water
d energy

Answers

Answer:

c

Explanation:

Competition for water is likely to be more important to the cattle than competition for food, shelter, or energy, as these other needs can typically be met through other means. Therefore,option (C) is correct.

Why cattle need water to survive?

Cattle, like all living organisms, require a consistent supply of water in order to survive. In the passage, it is mentioned that the streams in the cattle's area are dry, which means that there may be limited access to water in this area. Cattle, also known as cows or bovines, are large, hoofed mammals that are domesticated for their milk, meat, leather, and other products. They are typically raised on farms or ranches, and are known for their docile and gentle nature. Cattle are herbivores, and are typically fed a diet of grass, hay, and other plant materials

As a result, the cattle may have to compete with one another for access to water, as it is a basic necessity for survival. In this situation, competition for water is likely to be more important to the cattle than competition for food, shelter, or energy, as these other needs can typically be met through other means.

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15 POINTS The_____line of defense is referred to as the immune response

Answers

Answer:

The third line of defense is referred to as the immune response. This defense is specific to a particular pathogen, and it allows the immune system to “remember” the pathogen after the infection is over.

Explanation: in my best description, btw if its good make me brainliest?, if it didnt help im sry i tried my best

why are there no gram-positive archaea species but there are gram-positive bacteria species

Answers

Answer:

There are no gram-positive archaea because archaea lack peptidoglycan in their cell walls, meaning that the archaic cell walls are more similar to gram-negative bacterial walls, although they do show a greater variety of cell wall types. And bacteria do have this.

Competition occurs when more than one organism is trying to use the same resource.True or false?

Answers

Answer:

true

Explanation:

Which of the following symbiotic relationships is considered parasitic?
A. Tapeworm in an intestinal tract
B. Bees transporting pollen from flowers
C. Pilot fish swimming under sharks
D. Birds eating the insects from the back of a hippopotamus

Answers

Answer:

A. Tapeworm in an intestinal tract.

Explanation:

This symbiotic relationship is parasitic because the tapeworm causes harm to the host. Tapeworms feed off the nutrients the host consumes, thus making the host sick.

Not parasitic:

Bees transport pollen from flowers back to the nest to feed the young bees, but pollinate female flowers as well which keeps the flower population alive.

Pilot fish swim under sharks to keep other prey from eating them, and the shark do not eat eat the pilot fish.

Birds eating the insect of the back of a hippopotamus keep the hippo clean and parasite-free as well as feeding the birds.

The presence of tapeworm in intestinal tract is considered parasitic. Thus, the correct option is A.

Symbiotic relationships refers to the association between two two organisms belonging to different species. There are three types of symbiotic relationships which are mutualism, commensalism and parasitism.

In mutualism, both of the organisms involved are benefited from the relation.

In commensalism, one of the organisms involved is benefited and the other is neither benefited nor harmed from the association.

In parasitism, one of the organisms involved is benefitted and the other one is harmed from the association.

As in the relationship between tapeworm and human, tapeworm is benefited but the human involved is harmed. Thus, it is a parasitic relation.

Thus, the correct option is A.

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How can these artificial reefs protect biodiversity in the ocean ecosystem?

Answers

Answer:The reefs create a shelter for organisms and food

Explanation:Therefore it now created a more populated area for more animals or organisms to live.

Answer:

Plato

Explanation:

Many animals depend on corals for food and protection. By restoring the reefs using this method, they may be able to protect other populations of organisms from declining as well.

what forces cause surface ocean circulation? what forces cause deep water circulation?

Answers

Answer:

ANS 1) Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean.

ANS 2)n the deep ocean, the predominant driving force is differences in density, caused by salinity and temperature variations (increasing salinity and lowering the temperature of a fluid both increase its density). There is often confusion over the components of the circulation that are wind and density driven.

HOPE IT HELPS : D PLEASE MARK ME BRAINLIEST

Explanation:

13)
In human males, the urethra is used for transport of
A)
egg cells only.
B)
sperm cells only.
C)
egg cells and urine.
D)
sperm cells and urine.

Answers

Answer:

D

Explanation:

Answer:

D

Explanation:

Sperm Cells And Urine

What is respiration?

Answers

Answer:

B r e a t h i n g

EXPLAINATION????:

A process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

Answer:

Another word for taking a breath.

Explanation:

Why are marsupials only found in Australia?

Answers

Answer:

B. Australia is isolated

Explanation:

They originated in South America and spread throughout the world, but due to competition on other continents, the other marsupials died out, while the ones on Australia lived.

The answer is :
B. Australia is isolated since the continents broke apart

What do you think happens to a fish’s behavior in cold climates during winter explain

Answers

Answer:

it changes just as the weather changes

Explanation:

so as it gets colder the fish get colder as well meaning that the fish will expect its habitat to turn warmer just as we humans (some of us aliens jkjk) want warmth when we are cold its the same thing with fishes

Both parents can roll their tongue, yet their child cannot. What must the parent's
genotype be?
A. Parents must both be homozygous dominant
B. Parents must both be homozygous recessive
C. Parents must both be heterozygous
D. IDK​

Answers

The answer is C Heterozygous

Explanation: the inability to roll your tongue is a recessive trait. Since both parents are heterozygous, they carry that recessive gene, so their child will have a 25% chance of having that recessive trait; and therefore, unable to roll their tongue.

Explain why overpopulation occurs and how it impacts ecosystems.

Answers

Answer:

overpopulation can occur when there are not enough preadators or the food web is out of balance, in some ecosystems overpopulation can really harm it as some organisms increase and decrease which can cause an extintion if it gets too out of hand.

Explanation: period.

Hope this helps

Human blood consist of blood groups A, B, & O. However, there is one more blood group, AB, which contains alleles A and B in the same genotype. What is this phenomenon called?

Answers

Answer:

codominant inheritance

Explanation:

edge

Where is fresh water located

Answers

in icecaps and glaciers, and just over 30 percent is found in ground water. Only about 0.3 percent of our fresh water is found in the surface water of lakes, rivers, and swamps.

how is a food web different from a food chain

A. Food webs contains only producers not consumers
B. Food webs do not include decomposers
C. Food webs exist in aquatic environments food chains exist in terrestrial environments
D. Food webs contain many different linked food chains​

Answers

Answer:

D. Food webs contain many different linked food chains​

Explanation:

Select the correct answer.
Which of the following is the correct definition of a biography?
OA
an account of a fictitious experience that relies on figurative language
B.
an account of a single significant experience in a person's life
C.
an account of somebody's life written by that person
D.
an account of somebody's life written or produced by another person
Reset
Next

Answers

Answer:

D.

an account of somebody's life written or produced by another person

. Which is NOT a function of the skeletal system? a. defense b. movement c. protection d. storage

Answers

Storage is not a function
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What is ironic about the following passage from narrative of the life of fredrick Douglass in 1832 The following information is taken from the accounts of Latta Company. The entries in the T-accounts are summaries of the transactions that affected those accounts during the year. Manufacturing Overhead (a) 486,144 (b) 405,120 Bal. 81,024 Work in Process Bal. 10,880 (c) 754,000 298,500 90,500 (b) 405,120 Bal. 51,000 Finished Goods Bal. 39,000 (d) 662,000 (c) 754,000 Bal. 131,000 Cost of Goods Sold (d) 662,000 The overhead that had been applied to production during the year is distributed among Work in Process, Finished Goods, and Cost of Goods Sold as of the end of the year as follows: Work in Process, ending $ 24,480 Finished Goods, ending 62,880 Cost of Goods Sold 317,760 Overhead applied $ 405,120 For example, of the $51,000 ending balance in work in process, $24,480 was overhead that had been applied during the year. Required: 1. Identify reasons for entries (a) through (d). 2. Assume that the underapplied or overapplied overhead is closed to Cost of Goods Sold. Prepare the necessary journal entry. 3. Assume that the underapplied or overapplied overhead is closed proportionally to Work in Process, Finished Goods, and Cost of Goods Sold. Prepare the necessary journal entry. Put in order rational numbers Did anyone else thing just stop working?it said brainly had a web error? Choose the right word to complete each sentence the battle of Fredericksburg came (before, after, during) the battle of chancellorsville Why and how did the CivilRights Movement expand? Which tables display linear functions? Check all that apply. Who was the first African American senator?A. Blanche K. BruceB. Hiram Rhodes RevelsC. Jonathan Clarkson GibbsD. Frederick Douglass 7. Over which issue did the British and Boers go to war in the late nineteenth century? (1 point)independence for South Africacompetition for resourcescontinuance of the slave tradeestablishment of a democracy Cape Canaveral, Florida is where much of the worlds space exploration takes place. Geographically, this location was well suited to become America's spaceport. There are several reasons this is such a good location. It was not highly populated and is flat land facing the ocean. Railroads and ships were able to bring in the materials used to build the launch pad and space station. All of the following are contributions of the Space Center for Florida except which one? A)Education programs flourished. B)Thousands of new workers moved to the state. C)Factories manufacturing space products started all over the state. D)All the money that came into the state was used for space research. Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowingextra gills, for oxygen extractionO the ability to grow largerextra fat, for warmth whats the mean absolute deviation of 1, 3, 2, 2, 1, 3, 3, 1 How many grams of CO2 are produced from the burning of 1.0 mol of amyl alcohol, C5H11OH? If a polynomial function f(x) has roots 0, 3, and 2+ V5, what must also be a root of f(x)?-2-sqrt152-sqrt1515-sqrt 215+sqrt 2 I Rewrite the incorrect word in the sentences(hint: words thyat u have to change are at the end of the sentence) 1. He didnt see nobody in the room. ____________(nobody) 2. Please give to I the number of that school. _____________(I)3. In my school, anybody plays rugby. _______________(anybody) 4. We all enjoyed themselves at the party. __________5. Have you seen mine coat? _________________________(themselves) 6. Hacking is a common crime. Them could go to jail. ____________(Them)7. Give myself my bag back! ____________(myself) 8. Her children are too young to look after they. __________(They)II Write the correct pronoun.1. Ann isnt happy because_________has stolen hers/her mobile phone. (somebody/anybody)2. Somebody forgot to lock the door, didnt_________? (he/they)3. My brother is older than me but ________ isnt as tall as I am. (he/him)4. We dont know ___________ (theirs/their) telephone number, but they know ours.5. People play sports ______________ (everywhere/anywhere) in the world.6. We helped _________(they/them) move the piano; they couldnt have done it on _____________ (their/them) own.7. Have you lost ________________ (anything/nothing?) Where was the 1st Battle of the Civil War held? In 2009, how many American homes had Internet access? A. 50% B. 70% C. 80% D. 90% What is the percentage composition of cobalt in cobalt(II) fluoride, CoF2? If x^2-kx+9=0 has equal roots,find the positive value of k Escoge la opcin que completa la frase con la forma correcta de la expresin tener que. Choose the option to complete the sentence with the correct form of the expression tener que.Ponchito quiere tener una experiencia autntica. Por eso, ________ comer la comida tradicional y no comer solo en el hotel. tiene que tienes que tengo que tienen que