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12345 [234]
2 years ago
13

What is a tetrad?

Biology
2 answers:
Alex17521 [72]2 years ago
4 0
I think the answer will be D
Ksju [112]2 years ago
4 0

Answer:

two sets of sister chromatids

Explanation:

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What is the primary change that happens to a human during the third trimester of gestation?
True [87]

Answer:

<em>The correct answer is C) The organs mature</em>

Explanation:

During the 3rd trimester, the baby continues with its development. Structures like the bones have completely formed but are soft. The baby is capable of opening and closing its eyes. During the 3rd trimester, the organs of the baby are fully mature and can carry out their own functions. By the end of the third- trimester, the baby turns in head- down position. Hence, the correct option is C.

4 0
3 years ago
What is the purpose of cellular respiration?
swat32
A. Break down sugars to use their energy directly
4 0
2 years ago
Fossils can be used to determine what the environment (or climate) was in ancient times.
CaHeK987 [17]
True because some fossils only lived in certain places
5 0
3 years ago
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All animals must be able to take in information and react to their environmental conditions. Describe the organs and organ syste
Artist 52 [7]

Answer:

Nervous system

Explanation:

The nervous system in humans work together to collect information about the external environment because they consist of the brain, spinal cords and neurons. They collect information from external environment and those information travels through neurons from sense organs like eyes, ears, skin e.t.c as a form of electrical impulses. When they get to the end of the neuron, a chemical called neurotransmitters are released which travels across the cells and send it to the brain, the brain then process it and interprete the signals and respond to it as stimulus.

5 0
3 years ago
Read the passage below.
Svet_ta [14]

The correct answer is C. New experiments can affect previous scientific explanations.

Explanation: An experiment is a way of checking a phenomenon under specific conditions to analyze its effects or to verify a hypothesis. An example of this is the statement because before the seventies it was believed that new neurons could not be generated in an adult brain, however, after conducting an experiment on songbirds it was found that it was possible. Therefore, it confirms that new experiments can affect previous scientific explanations because new experiments can test hypotheses that modify previous explanations. So the correct answer is C. New experiments can affect previous scientific explanations.

4 0
2 years ago
Read 2 more answers
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