1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kykrilka [37]
3 years ago
13

Natural selection is best described as a a change in an organism in response to a need of that organism b a process of nearly co

nstant improvement that leads to an organism that is nearly perfect c differences in survival rates as a result of different inherited characteristics d inheritance of characteristics acquired during the life of an organism
Biology
1 answer:
exis [7]3 years ago
8 0
Natural selection is the acquiring of the characters that enable an organism to survive in a particular climate, or condition. It is the differential survival of the organisms and having a different phenotype, which are heritable. This phenomenon is a key theory of evolution. 
You might be interested in
You have identified a previously unknown human gene that appears to have a role in autism. It is similar enough in DNA sequence
nexus9112 [7]

Answer:

Amino acid sequences

Explanation:

The proteins perform the vast majority of functions in the cells. If a gene between a human and a mouse is evolutionarily related, it means that the function they do in the cell is quite similar in both species. This is the reason why the amino acid sequence would be the most similar.

In addition, there might be certain mutations in the DNA and therefore in the RNA between this 2 sequences that encode to the same amino acid sequence. More specifically speaking, there are more than one codon that encode to the same aminoacid. Thus, 2 different DNA/RNA sequence can give the same aminoacid sequence.

3 0
3 years ago
HELP!!! Plato Biology closed out and all I had left was Final. Anyone have examples of the 50 questions so I can study
s344n2d4d5 [400]

Answer:

Explanation:

Are gender traits completely a result of societal expectations?

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Are there nuclear reactions going on in our bodies?

Can humans ever directly see a photon?

Can I turn my cat into a diamond?

Do blind people dream in visual images?

Do Kirlian photographs show the soul of an organism?

Do koalas eat honey like other bears?

Do poppy seeds contain narcotics?

Does the human body contain minerals?

How can the heart be strong enough to pump blood up your legs against gravity?

How can we differentiate so many different foods if we can only taste four flavors on our tongue: sweet, bitter, sour, and salty?

How can we unlock the 90% of our brain that we never use?

How did doctors create my belly button?

How did evolution ever lead ostriches to hide their head in the sand when an enemy approaches?

How do I turn on more parts of my brain and get smarter?

How do nerves control every organ and function in the body?

How do trees give earth all its oxygen?

How does the outer layer of skin cells on my finger detect when I am touching an object?

How long before genetic sequencing is able to tell us exactly how our children will look and act?

How long does it take our eyes to fully adapt to darkness?

How much water can a camel store in its hump?

How strong does a non-toxic odor have to be before it damages your sense of smell?

Is human blood ever any color other than red?

Is ionizing radiation always harmful?

Is it completely random whether a baby is a boy or a girl?

What are the five senses of the human body?

What chemicals can make human tissue regenerate in seconds?

What is it about a full moon that makes people do crazy things and commit crimes?

What is it about red that makes bulls so angry?

When did humans stop evolving?

When do birds use their teeth?

Where in my body is the original cell from which I was formed?

Why are bats blind?

Why are human brains the biggest?

Why are red, yellow, and blue the primary colors in painting but computer screens use red, green, and blue?

Why are veins blue?

Why can only certain parts of the tongue taste sweet flavors? Is there an evolutionary benefit to this?

Why can you boil a frog without it jumping out to safety if you raise the temperature slowly?

Why can't color blind people see any colors?

Why did evolution create a chicken that lays so many unfertilized eggs when that is so wasteful?

Why do camera flashes make your eyes turn red?

Why do humans have an appendix even though it is unnecessary?

Why do my fingers absorb water and become wrinkled?

Why does chewing gum take seven years to digest?

Why does every cell in our body contain DNA?

Why does evolution always lead to more advanced species?

Why don't dogs sweat?

Why don't I burst cells in my rear when I sit down?

Why don't our eyeballs fill up with water when we swim?

Why don't trees freeze and burst in the winter like cold pipes?

Why have humans evolved to be taller over the last three hundred years?

Why will a mother bird abandon its chick if touched by a human?

3 0
3 years ago
How would you test the presence of starch in leaves?
Lesechka [4]

Answer:

1. Remove a green leaf from the plant

2. Boil the leaf in boiling <u>water stop enzymatic reaction within cells in leaf</u>

3. Put the boiled leaf in boiling tube containing alcohol <u>extract (ethanol) chlorophyll ethanol dissolves Lipids in cell membranes.</u>

4. Return to leave to the hot water <u>soften the leaf and allows penetration of </u><u> </u><u>i</u><u>odine</u>

5. Remove leaf and perform the iodine test

Explanation:

<em>starch is white powdery substance consisting of glucose which is used by plants as food the percents of starch in leaves evidence enough of the process a photosynthesis being carried out in leaves as the formation of starch necessitates photosynthesis</em>.

I hope this helps :)

4 0
4 years ago
Is C6H12O6 a carbohydrate, a fatty acid, a amino acid or polypeptide?
Ivenika [448]
Amino acid...........
6 0
3 years ago
"Explain the statement that both Archaea and Bacteria have the same basic structures, but these structures are built from differ
timurjin [86]
<h2>Importance of Archaea And Bacteria </h2>

Explanation:

  1. Microscopic organisms contain peptidoglycan in the cell divider.
  2. Archaea do not.Explain the explanation that the <em>two kinds, microbes and archaea</em>, have a similar essential structures, yet worked from various synthetic parts.
  3. The archaea and two microbes have cell films and the two of them contain a hydrophobic bit.
  4. The two microorganisms and archaea have a cell divider that ensures them. it is made out of peptidoglycan, though on account of archaea.
  5. The two microscopic organisms and archaea have diverse Ribosomal RNAs (rRNA).
  6. Archea have three RNA polymerases like eukaryotes, yet microorganisms have just one. Archaea have cell dividers that need peptidoglycan and have films that encase lipids with hydrocarbons as opposed to unsaturated fats.
  7. The two microscopic organisms and archaea have diverse Ribosomal RNAs (rRNA).
4 0
3 years ago
Other questions:
  • Why did only about one fourth of mendel's f2 plants exhibit the recessive trait
    15·2 answers
  • What is a potential hypothesis
    10·1 answer
  • The chemical process through which glucose and other organic molecules are broken down to release energy is known as
    6·1 answer
  • Women earn less than men,on average,because
    8·1 answer
  • A certain species of caterpillar has bright colors that signal that it produces a
    9·1 answer
  • 20 pl
    13·1 answer
  • Directions: Use the graph to answer the question.
    14·1 answer
  • What are the decomposable mean​
    5·1 answer
  • Which of the following is the best example of non–point source pollution?
    9·2 answers
  • The information for protein synthesis is stored in:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!