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
klasskru [66]
3 years ago
13

Which of the following statements is true?

Biology
1 answer:
fiasKO [112]3 years ago
3 0

<u>Answer:</u> Mutations are the most fundamental way to add new genes to a gene pool.

<u>Explanation:</u>

Mutation refers to the process through which the normal sequence of altered. It may be either acquired or hereditary. It leads to addition of new genes to a gene pool.

The reason for not considering other statements as true are:

1. It is the hereditary mutation that are passed form parent to offspring's and acquired mutation is caused by external factors.

2. Acquired mutation are caused by external factors such as radiation.

3. Germ line mutation are important to evolution because they can be inherited.

You might be interested in
List the main principles of the cell theory.
kogti [31]

Here are 3 principles! Hope this helps!!
1 all living organisms are compound by one or more cells
2 the cell is the structure and functional basic unit of life.
3 all cells originated from other cells
7 0
3 years ago
Read 2 more answers
The sodium-potassium pump is involved in active transport that moves 3 sodium ions from the cell for every 2 potassium ions it m
Ugo [173]

Answer:

The sodium-potassium pump is an active transporter because it needs to move sodium and potassium ions against the concentration gradient.

Explanation:

You have to think of it as outside vs inside the cell.

Outside the cell, you have 5mM K and 150mM Na. Inside the cell, you have 100mM K and 10mM sodium. Without the transporter then the ions would go from greater concentration to lower concentration.  Energy keeps the ions going from the way they would naturally happen.

3 0
2 years ago
Which of these conditions indicate positive feedback has occurred?
aleksklad [387]

Answer;

A) Blood pressure decreases greatly; blood flow to the heart is inadequate, and blood pressure decreases.

Explanation;

-With negative feedback, the output reduces the original effect of the stimulus. While in a positive feedback system, the output enhances the original stimulus.

-Negative feedback is the most commonly used feedback loop in the body. Negative feedback is used to negate or counteract a stimulus without completely eradicating it.

-One key difference between the two feedback is that positive feedback loops are used to eradicate a stimulus. Another key difference is that responses through positive feedback become more amplified over time. So once a stimulus activates a positive feedback loop it is not turned off until the stimulus is completely removed.

8 0
3 years ago
The genetic change in a population or species over many generations is _____.
Over [174]
The genetic change in a population or species over many generations is evolution. Whether it be physical or mental increase.
8 0
3 years ago
Read 2 more answers
What is the best definitionof chemical energy?
Sophie [7]
The answer would be a. Energy stored in chemical bonds :)
6 0
3 years ago
Other questions:
  • 1
    14·1 answer
  • A mollusk with a single shell and a muscular foot is a _____
    11·1 answer
  • Molecules cannot change position in a ________.
    10·1 answer
  • Which is one purpose of cell division?
    15·2 answers
  • The correct answer for this<br>2(4m+7)-(m-5)
    12·1 answer
  • A 4-day-old infant is admitted to the pediatric unit with a cleft lip and palate. surgery to repair the lip is scheduled for lat
    8·1 answer
  • List the ways in which tadpoles turn to frogs
    15·1 answer
  • How is a recessive allele different from a dominant allele?
    10·1 answer
  • Why would you expect Hurricane Irene or Hurricane Charlie to cause more damage? Explain why. Complete sentences.
    5·1 answer
  • Sharp lateral Moho variations across the SE Tibetan margin and their implications for plateau growth
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!