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arsen [322]
3 years ago
9

(5.01 MC) SC.912.L.15.13

Biology
1 answer:
Anni [7]3 years ago
3 0

Answer:

The answer here is B.

Explanation:   We can figure out this answer by using simple process of elimination. The first answer is clearly incorrect because it is not a deciding factor of survival. The pitch of it's croak will not change anything. So there is no reason they will be eliminated. The third answer is also incorrect because since the higher pitch does not help the frog's survival, there will be no need for adaptation towards higher pitch. This is the same for the fourth answer. So the answer must be B.

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The energy required to run the Calvin cycle reactions of photosynthesis comes from which two substances produced during the ligh
Lelu [443]

Answer:

a. ATP and NADPH

Explanation:

Light-dependent reactions of photosynthesis include splitting of water in the presence of sunlight and release of electrons. The electrons move from the reaction center of the PS-II via electron carriers to the PS-I. From the reaction center of PS-I, the electrons finally reach NADP reductase and reduce NADP into NADPH.

During this electron transfer via electron carriers, a proton concentration gradient is generated across the thylakoid membrane. The energy of this gradient is used to drive ATP synthesis. ATP and NADPH formed during the light-dependent phase of photosynthesis are then used during the reactions of the Calvin cycle.

6 0
3 years ago
Which of the following bodies of water is bounded in three sides by Australia and to the north by the Arafura sea?
vesna_86 [32]
The Gulf of Carpentaria.
8 0
3 years ago
Complete hydrolysis of a nonapeptide gave 3 ala, 2 phe, 2 asp, gly, and ser. Reaction of the nonapeptide with Sanger's reagent (
Wewaii [24]

Answer:

Alanine is obtained as the first amino acid, taking into account that the reaction with the Sanger reagent hydrolyzes N- (2,4-dinitrophenyl) alanine. thus with the fragments of the partial hydrolysis they are organized to create a polypetidic chain

ala-asp-gly-ala

gly-ala-phe

phe-be-wing

be-wing-phe-asp

We obtain that the correct sequence of the peptide is "ala-asp-gly-ala-phe-ser-ala-phe-asp"

7 0
3 years ago
The INDEPENDENT VARIABLE:
klemol [59]

Answer:

B. Is what the scientists manipulate in the experiment.

Explanation:

The Independent variable is not dependent, or doesn't rely, on another variable in the experiment. So, it would make the most sense that they would manipulate the Independent so that they can watch and see how the dependent variable reacts to the manipulation, or the change, in the independent variable.

4 0
3 years ago
Name the layers of the earth from smallest to largest! help?
nalin [4]
Okay, let's see... 

In the center, we have the inner core, then the outer core, and then the slow moving mantle. On the outside, we have the crust a.k.a. where we live. =]
8 0
3 years ago
Read 2 more answers
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