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Furkat [3]
3 years ago
8

Examine the phylogenetic tree.

Biology
1 answer:
telo118 [61]3 years ago
4 0

Answer:

1.

Explanation:

i had the same question and it was right

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In the early 1980s scientists were able to produce two biomolecules by splicing a human gene
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The genes for all organisms are composed of the same building blocks.

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Dopamine is a neurotransmitter responsible for:
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Population crashes cannot happen to humans?True False?<br><br>​
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Anyway have a nice day :)
3 0
3 years ago
Give an example of spinal reflex and explain how the nervous system functions in this reflex action
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The patellar reflex is the most common example or a spinal reflex. When the knee is tapped, the nerve that will receives this stimulus sends an impulse to the spinal cord and relay it to the motor nerve. This sources the quadriceps muscle at the front of the thigh to contract and twitch up the leg. This reflex contains simply two nerves and one synapse. The leg will start to twitch up on the other hand the brain is just suitable aware of the tap and comprehends the situation. <span>Subsequently the tap, the leg is routinely lengthy once and comes to rest. The nonappearance of this reflex is problematical and recognized as westphals sign this reflex might be lessened or absent in lower motor neuron lesions and during sleep. </span>

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