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Ymorist [56]
2 years ago
10

Pls help I have to do this now

Biology
1 answer:
Papessa [141]2 years ago
8 0

rocks are obsidian and extrusive

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In 1953, Stanley Miller and Harold Urey built a model of Earth's early
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Answer: C. Miller and Urey showed that inorganic compounds could combine  to form the building blocks of living cells.

Explanation:

The Miller and Urey were the two scientists who created the atmospheric conditions that were expected to be present on primitive earth. They demonstrated that several organic compounds have been formed spontaneously from the inorganic compounds like water, ammonia, methane and others.

The exposure of mixture of inorganic compounds by the lightening lead to the formation of organic molecules like amino acids which are the building blocks of life. This was similar to the penetration of earth atmosphere by UV radiation producing the organic compounds from inorganic molecules.

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2 years ago
Which correctly compares the immunity produced by a vaccine with the immunity produced by injection of antibodies from an extern
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For the answer to the question above, I believe the answer is <span>A. vaccine helps the body develop memory cells that make immunity last, whereas injection of antibodies only produces a temporary immunity.

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3 years ago
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A positive ion with two units of charge has 10 neutrons and 8 protons. the ion also has
yuradex [85]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Below are the choices that can be found from other sources:

<span>a. 10 electrons
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Answer is 6 electrons. <span>The part with the two units of + charge is a cation; the part with the unit of - charge is an anion.</span>
4 0
3 years ago
A cross between pea plants with red flowers and plants with white flowers resulted in all offspring with pink flowers. this expe
iris [78.8K]

Answer:

d: incomplete dominance

Explanation:

incomplete dominance is inheritance in which one allele for a specific trait is not completely expressed over its paired allele. this results in a third phenotype in which the physical trait is a combination of both alleles.

6 0
3 years ago
HEELLPP ASAPP PLEASEE!!<br><br> don’t answer if u don’t know
ikadub [295]

Answer:

Brown is the dominant gene and white is the recessive gene.

Explanation:

If brown were to be dominant then the mice would most likely all be brown unless the got both a white from mom and dad which is most likely due to brown being recessive the dad could be part white you just wouldn't see it. And since the mother is white all of the mice get a white gene from the mom and since the dad most likely has a white gene hidden inside of him only tow mice became fully white while the siblings were brown.

Hope this helps.

6 0
3 years ago
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