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lisov135 [29]
2 years ago
10

What type of mutation involves changing one letter to another letter in a DNA strand.

Biology
1 answer:
igomit [66]2 years ago
4 0

Answer:

Substitution

Explanation:

Substitution is when one letter is switched out for another.

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Why are emotional memories retained better than memories of humdrum experiences? Select an answer and submit. For keyboard navig
olya-2409 [2.1K]

Answer:

The correct answer is : option A. emotional arousal in the amygdala activates memory consolidation in the hippocampus.

Explanation:

Hippocampus is the part of the brain known for the consolidation of the memories to short time to long term memories based on their emotional relevance.

Amygdala is the part of the brain that is responsible for emotional arousal or forming emotion which is later activates the hippocampus to consolidate this memory. Memory with the emotional aspects retained for long term than boring or humdrum experiences due to the reason mentioned above.

5 0
3 years ago
"passive refilling of the heart occurs during which phase of the cardiac cycle?"
Oksanka [162]
Hey! here is your answer

passive refilling of the heart occurs During ventricular systole, the blood pressure 
3 0
3 years ago
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During what time does the Valley Breeze occur
Lesechka [4]
Hmmm let me think.........
4 0
3 years ago
How do we know what the make-up of air was like in the past?
ANTONII [103]

Explanation:

Primordial organisms did not require oxygen for respiration as is the case with most organisms case today. These organisms were and are still mainly anaerobic. They main form of cellular respiration is glycolysis that does not utilize oxygen. Since other organisms evolved from the primordial cells, it is deduced that the early atmosphere was not mainly composed of oxygen but mainly carbon dioxide.

In today’s aerobic cells oxygen is utilized in the Krebs cycle as a proton acceptor making cellular respiration even more efficient in the production of energy. Remember that, utlimately, organisms evolve to fit into their environment.

Learn More:

For more on the early earth's atmosphere check out;

brainly.com/question/12979094

brainly.com/question/12934260

brainly.com/question/12790834

brainly.com/question/11725431

#LearnWithBrainly

7 0
3 years ago
As a cell grows larger and increases in volume, which of the following effects on its surface ratio is most likely
ddd [48]

Answer:

D

Explanation:

Larger organism increases more in volume than area. That's why larger organism uses respiratory systems or organs and systems instead of simple diffusion for removal of waste and absorption of nutrients.

3 0
3 years ago
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