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Ludmilka [50]
3 years ago
7

Which of the following describes a role of gravity in the formation of our solar system? I. In the early stages of solar system

formation, a fragment of an interstellar cloud of dust and gas collapsed and began rotating under the influence of gravity. II. The eight planets were originally orbiting a nearby star, and the Sun's gravity pulled those planets into orbit around the Sun. III. Gravity caused small particles in the rotating solar nebula to stick together and form larger particles. This process repeated itself, forming larger and larger particles that eventually became planets. IV. The combined gravities of the planets pulled the Sun away from a nearby star cluster and into the center of the solar system. A. I, III, and IV only B. I and III only C. I, II, and III only D. I, II, III, and IV
Biology
1 answer:
Luda [366]3 years ago
7 0
The answer is B. The planets were all formed from dust that was orbiting around the sun.
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When light energy is absorbed by a chlorophyll molecule its electrons gain energy and move to higher energy levels in the molecule

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Which of the following is an example of specific immunity?
zvonat [6]

Answer:

Immunity to Small Pox

Explanation:

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A sperm and egg are each _________. They fuse during fertilization to produce a _________ cell. A sperm and egg are each _______
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Answer:

3. haploid; diploid

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When during fertilization, these two haploid nucleus of these cells fuse together, they form a diploid zygote.

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DNA contains the template needed to copy itself, but it has no catalytic activity in cells. What catalyzes the formation of phos
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DNA contains the template needed to copy itself, but it has no catalytic activity in cells. <u>DNA polymerase</u> <u>(Option B)</u> catalyzes the formation of phosphodiester bonds between adjacent nucleotides in the DNA polymer being formed during DNA replication.

DNA polymerase catalyzes the formation of the phosphodiester bond by adding the deoxynucleoside triphosphate onto the growing polynucleotide chain. During this step-wise process, a single pyrophosphate molecule is released every time the chain is elongated by one deoxyribonucleotide.

The main function of the third polymerase is duplication of chromosomal DNA, while others are involved mostly in DNA repair and translation.

To learn more about DNA polymerase in replication process, here

brainly.com/question/14445108

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4 0
1 year ago
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