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iragen [17]
2 years ago
12

Juan picks up a steel utensil and immediately drops it because it’s extremely hot. How does the reflex arc work to protect Juan

from a worse burn?
In a reflex arc, __A__ neuron carries the action potential from the __B__.

A. *Motor
*Relay
*Sensory

B. *Brain to the spinal cord
*Sense organ to the brain
*Spinal cord to the muscle

Biology
2 answers:
Marina CMI [18]2 years ago
7 0

Sensory

Brain to the spinal cord

Hope this helps.

11Alexandr11 [23.1K]2 years ago
7 0

Answer: A - Sensory

B - Spinal cord to muscle

Explanation:

Upon receiving the external stimulus, a sensory neuron is activated which does not directly pass into the brain, but instead goes to the spinal cord.

This brings about a quick reflex in which the spinal cord will send a motor neuron to the muscle to react to the external stimulus.

You might be interested in
A protein that is destined to be secreted from the cell has a signal sequence that targets it to the plasma membrane
emmasim [6.3K]

Answer:

A protein that is destined to be secreted from the cell:

- is targeted to the RER as a soluble protein.

Explanation:

The main function of the RER is the synthesis and transport of secretion or membrane proteins.

If you are looking for the RER you could fount it on eukaryotic cells, side by side of the nucleus, and cover in ribosomes.

7 0
2 years ago
Stem cells renew tissues but are all lost in childhood.a) trueb) false
ValentinkaMS [17]

Answer:

False

Explanation:

Stem cells are different type of cells in human body that can develop into different other body cells like muscles cells or brain cells and they gave the capability to renew themselves through mitotic cell division.

Stem cells are not lost in childhood but can be use to treat diseases or infection, it can be use to grow new cells and replace damaged body cells.

4 0
2 years ago
Transposons need to __________________ in order to limit their negative impact on the genome of the host cell. A. control their
nalin [4]

Answer:

The correct answer is B

Explanation:

Transposons need to regulate their copy number to avoid errors with chromosomal pairing during meiosis and mitosis such as unequal crossover.

A typical example of this error is called the Alu Sequence or Elements. Alu elements contain more than one million copies found everywhere in the genome of human beings.

Many inherited human diseases such as cancer are related to Alu insertions.

Cheers!

8 0
2 years ago
Urine drains from the ureters into the bladder through the _____.​
Jobisdone [24]
The answer is ureteral orifices.

Hope it helps!
3 0
2 years ago
A DNA sequence reads: AGGCCATATATG. Which of the following is the correct complementary DNA strand?
sp2606 [1]

Answer: Assuming you mean 'Which of the following is the correct complementary RNA strand?' The answer is D.

Explanation: This is because RNA is A=U G=C T=A

8 0
2 years ago
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