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andrew11 [14]
3 years ago
13

Why would natural selection not occur without genetic variations in species?

Biology
1 answer:
Mumz [18]3 years ago
8 0

If you do not have variations to be selected by natural or sexual selection on their superior abilities to survive and reproduce successfully then nothing can be naturally selected against the immediate environment.
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How do organs work together to form specific functions
lesya692 [45]

Answer:

Sistemas orgánicos

Explanation:

Aunque cada órgano del cuerpo realiza sus funciones específicas, los órganos también funcionan juntos por grupos, a los que se denomina sistemas orgánicos (ver Principales sistemas orgánicos). Los médicos clasifican las enfermedades y sus propias especialidades médicas de acuerdo a los diferentes sistemas orgánicos.

8 0
2 years ago
Two conditions related to cardiac compromise are angina pectoris and myocardial infarction. in comparing the​ two, remember​ tha
Alika [10]

Answer;

b. nitroglycerin may give incomplete or no relief of myocardial infarction pain.


Two conditions related to cardiac compromise are angina pectoris and myocardial infarction. In comparing the​ two, remember​ that nitroglycerin may give incomplete or no relief of myocardial infarction pain.


Explanation;

-Angina pectoris is the chest pain or discomfort due to coronary heart disease. It occurs when the heart does not get enough blood, due to blockage or narrowing of one or more heart's arteries.

-Myocardial infarction occurs when there is decreased blood flow or stoppage to a part of the heart, resulting to the heart muscle damage.

-Nitroglycerin extended-release capsules are used to prevent chest pain (angina) in people with a cardiac compromise. However, Nitroglycerin may give incomplete or no relief of myocardial infarction pain.

6 0
3 years ago
What process changed the genetics of some rabbits over many generations to give them white or spotted fur and to make them frien
irinina [24]
I think it would be selective breeding
6 0
3 years ago
The phosphodiester bonds that link adjacent nucleotides in both RNA and DNA:
Minchanka [31]

Answer:

Phosphodiester bonds:"It is a co-v-a-l-e-n-t bond in which a phosphate group joins adjacent carbons through ester linkages."

  • The 3’-end has a free hydroxyl group at the 3’-carbon of a sugar, and the 5’end has a free hydroxyl group or phosphate group at the 5’-carbon of a sugar.

Explanation:

Option- E: Is The best option to Choose from.

The phosphodiester bond links a 3' carbon to a 5' carbon in DNA and RNA.

8 0
3 years ago
Read 2 more answers
Which best describes the process that the pest population has experienced due to this environmental change?
Mumz [18]
Natural selection is correct
4 0
3 years ago
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