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ohaa [14]
3 years ago
7

why is the blood that flows from the lungs toward the heart a brighter red than the blood that flows the other direction

Biology
1 answer:
Ipatiy [6.2K]3 years ago
5 0
It is the presence of oxygen-bound hemoglobin that makes it bright red
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Select the true statementabout unmyelinated axons:A. action potentials occur everywhere along the length of the axon, and propag
butalik [34]

Answer:

The correct statement is - option B.

Explanation:

Unmyelinated axons are the axon that lacks the covering of scwann cells that form the myelin sheath which helps in the transfer or transmit the signals faster and more effectively in neurons. It acts as the insulating layer.

In absence of the myelin sheath, the action potential found everywhere along the length of the axon which leads to slow propagation than in myelinated axons.

Thus, the correct answer is - option B.

3 0
3 years ago
Which statements correctly describe sound? (Select all that apply.)
yanalaym [24]

Answer:

Sound waves behave in predictable ways.

Sound waves are compression waves that transfer energy in molecules.

All sound requires a medium through which to travel.

Explanation:

I am pretty sure these are the right answers.

6 0
2 years ago
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7 N<br> 7 N<br><br> 8 N<br> 8 N<br><br> 12 N<br> 12 N<br><br> 13 N
irinina [24]

Answer:

13n

Explanation:

basically goes by .2 and divide so 2.6 or 26/2=13

7 0
3 years ago
Christie’s doctor recommends that she eat 40 grams of protein a day. She already consumed 50% of her recommendation for the day.
Kay [80]

Answer:

he options are not given. The options are;

A. 1 B. 3 C. 4 D. 6

The answer is 4 which is option C.

Explanation:

Protein recommendations is the amount of daily required dietary proteins for a person base in its weight.

Christie's Doctor recommend 40grams of dietary protein and she has already consumed 50% of it. This meant that she has consumed about 20 grams of the required dietary protein and she needed additional protein source to complete her daily requirements. Therefore, Christie needs additional four servings of snacks to meet her daily protein recommendations.

Explanation:

5 0
2 years ago
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Mutations and polymorphisms are both changes in a DNA sequence, but polymorphisms are more common becauseA. they less severely a
Salsk061 [2.6K]

Answer:

Option A. they less severely affect the phenotype, so that individuals can reproduce and transmit them

Explanation:

Polymorphism is the genetic variation found within a population, which favors the process of natural selection. It prefer successful traits in population.

While, mutation is the alteration of DNA sequence of an organism. Mutation can cause loss of traits in the population.

4 0
3 years ago
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