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rewona [7]
2 years ago
12

What is a signal molocule

Biology
1 answer:
Annette [7]2 years ago
3 0

Answer:

signal molecule is a general term for molecules also called (ligands)that bind specifically to other molecules (such as receptors). hope it helps!!

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Which type of asexual reproduction involves duplication of the parent DNA before dividing itself into two?
Kipish [7]

Answer:

binary fission - asexual reproduction by a separation of the body into two new bodies. In the process of binary fission, an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA.

7 0
2 years ago
Question 2 of 9
Jlenok [28]

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.

8 0
3 years ago
2. How do the masses of the planets closest to the sun compare to those farther away from the
arlik [135]

Answer:

600

Explanation:

Just trust me

6 0
2 years ago
Help- I need to write a response pls- I have like 5-6 mins
docker41 [41]

Answer:

hjuhkjj

Explanation:

5 0
3 years ago
A _______ is a segment of a DNA molecule which codes for a specific protein, while a __________ is a long molecule of DNA wrappe
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