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iragen [17]
3 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]3 years ago
7 0

Sensory

Brain to the spinal cord

Hope this helps.

11Alexandr11 [23.1K]3 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.

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If all 5' and 3' splice sites were always used to process the pre-mRNA into mRNA, how many possible distinct mRNA sequences woul
lord [1]

The question lacks the diagram. The diagram has been attached below.

Answer:

1.

Explanation:

Exons may be defined as the coding region of the RNA whereas introns are the non coding region of the RNA. The introns must be removed out from the RNA to makes it functional molecule.

The splicing of the given molecule results in the formation of single mRNA. The 1 splicing of the introns remove intron A whereas the second splicing results in the removal of intron B. The functional mRNA consists of the mRNA with exon 1,2 and 3.

Thus, the answer is 1.

6 0
3 years ago
Which evidence from King's speech is most relevant in supporting the claim identified in Part A?
saw5 [17]

Answer:

"...for many of our white brothers, as evidenced by their presence here today, have come to realize that their destiny is tied up with our destiny."

(A)

3 0
3 years ago
Use the chart above to determine which substitution mutation has the potential to cause more damage? Highlight your answer. (2pt
icang [17]

Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence of the chart referred to in the question. However, what appears to be the case is that the three nitrogenous bases represent codons (and the missing chart is the codon chart). The mutation that has the potential to cause more damage will be the one that would change the amino acid formed from the codon change.

A. CAU to CAC: The codons CAU and CAC both form the amino acid histidine and thus is not expected to cause a major damage.

B. UGU to UGC: The codons UGU and UGC both form the amino acid cysteine and thus is not expected to cause a major damage.

C. UCU to UUU: <u>Codon UCU forms the amino acid serine while the codon UUU forms the amino acid phenylalanine</u>. Thus, this eventual change in the amino acid formed has the potential to cause a major damage and thus option C is the correct option.

NOTE that a codon is a sequence of three DNA/RNA nucleotides that corresponds to a single amino acid.

8 0
2 years ago
Which of the following is a medical doctor?
arsen [322]
The answer is option B "psychiatrist."  Psychiatrist are specialized in medicine and on finding cures for common diseases which would make them doctors. Also its not option A because a <span> psychologist is a person who studies in behaviors which is a therapist, its not option C because a social worker works mainly in families but not for the health. Its also not option D because a case manager who is placed to render court cases.

Hope this helps!</span>
3 0
2 years ago
One mole of O2 has approximately the same mass as 1 mole of
dybincka [34]
I believe that the other person who answers u is right
4 0
2 years ago
Read 2 more answers
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