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harkovskaia [24]
3 years ago
6

In patients with emphysema, what is the main stimulus of respiratory regulation?

Biology
1 answer:
Vlad1618 [11]3 years ago
4 0
Hey there,
The answer is <span>high CO2 levels in the CSF.

Hope this helps :))

~Top
</span>
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Which of the following is not true of saliva?
cluponka [151]
The answer is <span>B. contains enzymes that begin the breakdown of proteins.

Saliva is watery substance secreted by salivatory glands. <em>It cleanses the mouth</em> and maintenance oral hygiene. <em>It moistens the food</em>, so the created food bolus could easier pass into the esophagus. It also <em>carries food chemicals to taste receptors</em> so they can be tested. It contains enzymes involved in the food digestions. Some of them are amylase, which begins the breakdown of the starch, and lipase, which begins the breakdown of triglycerides. <u>There are no enzymes in the saliva that break down proteins</u>.</span>
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What becomes "deficient" when someone is infected with hiv?
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6 0
3 years ago
Hi!!!! Please help!! Desperately need biology help!
OLga [1]

Answer no 8:

The correct option is D) Antelopes with muscular legs are bale to outrun their predators better than antelopes with poor muscle tone. Thus they lived to reproduce.

Explanation:

Genetic variations in a population are the main reason that natural selection tends to occur. Natural selection favours those organisms which have better characteristics.The organisms with better traits are able to reproduce and pass on their characteristics to their offsprings.

Answer No 10:

The correct option is A) Phenotype directly influences the interaction of an organism with its environment.

Explanation:

The interactions between the phenotypic traits and the environment analyze whether a particular organism will be able to survive and pass on its characteristics to its offspring. Hence, the phenotype directly influences the interaction of an organism with its environment.

Answer No 9

The correct option is A) resistance to a virus

Explanation:

Mutations can be described as any changes which occur in the DNA of an organism. Mutations might be beneficial or harmful depending on the location where the mutation arises. Viruses are usually harmful for eukaryotes. Hence, the correct option is A.

Answer No 11:

The correct option is C) Giraffes with longer necks survived because they were better suited to the environment.

Explanation:

Natural selection tends to favour those organsims which are better suited to live in an environment. Those organisms with better characteristics are able to survive and pass on their traits to their offsprings.

The giraffes with longer necks were better adapted to live in the environment and hence were favoured by natural selection.

Answer No  12:

The correct option is D) selective breeding

Explanation:

Selective breeding can be described as a technique in which organisms with better characteristics are crossed, so that offsprings with better characteristics can be produced. Selective breeding is done by humans where as natural selection is done by the nature.

7 0
3 years ago
3. The number of atoms of oxygen in the formula C H20, Is<br> a.) 1<br> b.) 12<br> c.) 6<br> d.) 24
AlekseyPX

Answer:

6

Explanation:

I think that its 6 atoms

4 0
2 years ago
Read 2 more answers
Once potential energy has been converted into kinetic energy, one of two things can happen. The kinetic energy may be and made u
Ksju [112]

Answer:

Yes.

Explanation:

Energy can always be transformed from one form to another form.

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4 0
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