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Ierofanga [76]
3 years ago
15

Question 2 of 9

Biology
1 answer:
Jlenok [28]3 years ago
8 0

Answer:

The correct answer is option D.  Light and some other factors are necessary for chlorophyll production

Explanation:

By this experiment, it is clear that light is the major factor that helps in the production of chlorophyll in seedlings or plants. In this study, placing the seeds in the light turns 75 seedlings green which is possible by the production of the green pigment, chlorophyll only. So, it is proved that light is a key factor in the production of chlorophyll.

Besides light, there must be some other factors (mineral nutrition and chemical metabolites) that also play role in the production of chlorophyll or increase or decrease of the chlorophyll production as few seedlings did not turn green in the study.

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Which explanation best explains the role of enzymes as catalysts in living systems?
Katyanochek1 [597]
Enzymes are catalysts that can be used more than once. If a substance needs to get broken down then it can use the corresponding enzyme to attach itself and break it down into simpler substances. After this is gone, the next substance might come up and attach itself to the enzyme like a lock-and-key model.

Therefore the answer is A) Enzymes accelerate chemical reactions without getting used up in the process.
3 0
4 years ago
True or false:Meiosis takes place when it is time to replace old cell.Explain
Sveta_85 [38]

Answer:

False

Explanation:

Mitosis is the process of replacing damaged and old cells.

7 0
3 years ago
How was homo floresiensis different in appearance from homo sapiens?
Dmitriy789 [7]
<span>H. floresiensis tended to be smaller than H. sapiens. In addition, they had much smaller heads and, therefore, smaller brains. Also, the species had a much more sloped forehead, shoulders that were more forward-leaning, and feet that were relatively large for their small body size.</span>
5 0
3 years ago
The relationship between heredity and environment is
Lilit [14]
Not the same and they is not in a relationship
7 0
4 years ago
Which is allopatric and which is sympatric
Helen [10]

Answer: The correct answer is-

Allopatric-  option 2.

Sympatric - option 1.

Allopatric and sympatric are primarily the two major mechanisms for  speciation ( formation of new species from an ancestral species).

In allopatric speciation, a population splits into two different species when it is isolated by physical or geographical barrier.

On the other hand, sympatric speciation occurs wihtin the same area. A population splits into two species that is becomes reproductively isolated when a change in the chromosome number occurs.

Thus, option first corresponds to sympatric whereas option second shows allopatric speciaton.

4 0
3 years ago
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