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AlexFokin [52]
2 years ago
10

13. When one or more chromosomes fail to separate properly this is:

Biology
2 answers:
BigorU [14]2 years ago
8 0

Answer:

The answer is B

Explanation:

I hope you have/had an amazing day today and may God bless you<3

Bumek [7]2 years ago
4 0
B. non disjunction
Explanation- Non means not or no and Disjunction means a lack of correspondence
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Santi is walking barefoot through his yard when he steps on a sharp rock. The skin on the bottom of his foot sends
Travka [436]

Answer:

Santi is walking barefoot through his yard when he steps on a sharp rock. The skin on the bottom of his foot sends  this information through a(n)  <em>sensory</em> neuron to his CNS. A(n) <em>interneuron</em> picks up  this information and carries it to <em>motor neurons of the CNS</em>, which sends a signal to the muscles in his foot causing his  foot to pull away from the rock.

Explanation:

The scenarios discussed in the question is known as a reflex action. In this action, specific receptors detect specific stimuli. For example, pain in the barefoot due to steeping on a sharp rock was the stimuli. This stimulus was detected by the sensory neurons. The sensory neurons turned this information into a chemical signal which was transported by the interneurons to the motor neurons of the CNS. The CNS detected the signal and gave information for a response as a result of which Santi pulled back his feet.

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