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nadezda [96]
2 years ago
14

Help me out please !

Biology
2 answers:
UNO [17]2 years ago
4 0
It’s B I think sksjdbsjwjsgjsvdhsjsbwjsj
Banshee
GenaCL600 [577]2 years ago
3 0

Answer:

B.

Explanation:

The birthrate is higher than the death rate.

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If you were to add one of the eight citric acid cycle intermediates to the culture medium of yeast growing in the laboratory, wh
raketka [301]

Answer:

B) The rates of ATP production and carbon dioxide production would both increase.

Explanation:

The citric acid cycle is the second stage of aerobic cellular respiration. It includes complete oxidation of acetyl CoA into CO2 and H2O. During the citric acid cycle, NAD and FAD serve as electron acceptors. Reduction of these reducing powers forms NADH and FADH2 which in turn enter the electron transport chain for their oxidation and drive the process of as many as 32 ATP molecules by oxidative phosphorylation. On the other hand, fermentation forms of 2 ATP molecules and a few or no CO2 molecules.

Therefore, if one of the eight intermediates of the citric acid cycle is added to the medium, the yeast cells would perform aerobic cellular respiration and would form more CO2 and ATP molecules than the ones formed during the process of fermentation.

7 0
2 years ago
The distant ancestors of tigers may have had bodies without stripes. Use the theory of natural selection to explain how tigers m
Degger [83]

The tigers have stripes because it is advantageous for them because they are an ambush predator and need good camouflage. The stripes are excellent camouflage for places that are shady, so the tiger can easily get close to its prey and attack it.

There's a very big possibility that the distant ancestors of the tigers did not had stripes. The reasons for that are different environment, but also that the stripes are actually a very rare type of pattern among the felidae family members.

As the environment started changing, the tigers needed to adapt to it, so they also needed a different camouflage. As some tigers in the population started to develop stripes, they were better hunters, thus were stronger, and seen as suitable mates for the females, as it would provide an offspring with the advantage that the male tiger has. Through this selection in the breeding process of mates that have advantageous camouflage patterns, the stripes were becoming more and more present, to the point where they totally pushed aside and eliminated the previously dominant camouflage pattern.

8 0
2 years ago
Which objects are used in modern mapmaking? Check all that apply.
Tatiana [17]

Answer:

satellites[a] GPS units[c] computers[e]

Explanation:

6 0
2 years ago
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Brain cells and red blood cells receive most of their energy directly from ________________.
Sveta_85 [38]
Ii thinks they get there energy from proteins

3 0
2 years ago
What is an endocrine function? (Apex)
ElenaW [278]

The correct answer is option D

the pineal gland releases melatonin into the bloodstream

In the exocrine system the organ releases certain substance other than hormone while in the endocrine system , the organs releases hormones.

In option D, melatonin is a hormone released by pineal gland and thus it is an endocrine function

5 0
2 years ago
Read 2 more answers
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