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
Neporo4naja [7]
3 years ago
10

Genetic variation _____. a. must be present in a population b. before natural selection can act upon the population c. arises in

response to changes in the environment d. is created by the direct action of natural selection
Biology
1 answer:
Vadim26 [7]3 years ago
6 0

Answer:

B.

Explanation:

This is the change in the amino acid sequence of DNA of an organism.

It is one of mechanisms of  Natural selection. Variation  makes some organism to develop selective advantages over others in the same population. Therefore they have resistance to selection pressure and more natural selected   above  others organisms in the same population

You might be interested in
A disease-fighting protein created by the immune system in response to the presence of a specific antigen is called an:
Bingel [31]
Antibody ( fights bacteria etc )
7 0
4 years ago
Electrical stimulation of the brain (ESB) is used on humans during brain surgery to map out ___________. A. Nerves and neural pa
umka21 [38]

Answer:

Electrical stimulation of the brain (ESB) is used on humans during brain surgery to map out the brain and critical structures.

^_________^ <3

8 0
3 years ago
What is the function of the Compact Bone?
Nitella [24]
Inside each osteon is a space called a central canal, which houses blood vessels and nerves within the bone. These vessels supply blood to the interior spongy bone as well as the living cells housed within the compact bone. ... Osteocytes are cells that deposit bone.
7 0
4 years ago
C4 plants differ from c3 and cam plants in that c4 plants____.
monitta

Answer:

The difference between C3, C4, and CAM photosynthesis is the way plants extract carbon dioxide from sunlight. This depends largely on the plant's habitat. C3 photosynthesis produces three-carbon compound via the Calvin cycle while C4 photosynthesis makes an intermediate four-carbon compound that splits into a three-carbon compound for the Calvin cycle. Plants that use CAM photosynthesis gather sunlight during the day and fix carbon dioxide molecules at night.

CAM plants open their stomata at night, C3, and C4 open during the day.

Explanation:

6 0
3 years ago
Read 2 more answers
Iron is a type of metal. Therefore, the iron has a sparkling surface nature. However Iron is easy to rusty. Why?​
mihalych1998 [28]

Explanation:

When iron gets in contact with oxygen (or water, which also contains oxygen) it starts giving electrons to the oxygen atoms, in a process called oxidisation, and when that occurs, iron oxide (Fe_2 O_3) is made.

Note: iron oxide is what we call rust. And, iron is so easy to rust because it usually isn't mixed with any other protective metals or covered in protective films.

Hope it helped,

BiologiaMagister

7 0
3 years ago
Other questions:
  • Which is NOT a function of the human stomach? A) stores food for short period of time B) breaks up food physically and chemicall
    10·2 answers
  • Is a mutation permanent or temporary
    11·1 answer
  • Based on this chart, which City Experiences a polar climate? Each city is in a different climate zone. City Average Annual Preci
    5·2 answers
  • Question 15 (1 point)
    11·2 answers
  • Which group in subphylum vertebrata is most closely related to class amphibia?
    14·1 answer
  • How do barnacles grow and develop
    13·2 answers
  • I need help with #1 <br> Please help!!
    7·1 answer
  • How many elements are in 3Hg(SO)4
    8·2 answers
  • In a food chain, energy moves from producer to herbivore or
    10·1 answer
  • In which form is most of the water on Earth?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!