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liraira [26]
4 years ago
5

What gas do some scientist think was missing from earths early atmosphere

Biology
1 answer:
salantis [7]4 years ago
3 0
I think the answer is oxygen, but not 100% sure
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6. In the food chain shown, which animals are prey? (Select all that apply.)
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Answer:

Grasshopper and frog.

Explanation:

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2 years ago
Crossing over is a very important event in prophase 1 of meiosis! What happens during crossing over and what is the significance
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The term ‘Crossing over’ was used by Morgan and Cattell. It is a process in which there is exchange of chromosome segments between non-sister chromatids of a homologous chromosomes. It occurs during pachytene stage of prophase I of meiosis cell division.

Significance of crossing over:

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An important similarity between photosynthesis and cellular respiration is that both processes
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3 years ago
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Place the following materials in the order in which they are likely to fossilize. Begin with the material that is most likely to
marusya05 [52]

Answer: correct order--->

1)mammal teeth

2.)bones of an adult mammal quickly buried

3.) bones of an adult mammal left on the surface

4.)soft body parts of any animals

Explanation:

Fossilization is the ability of an organism to be preserved and remain unaltered for a very long time. Through research , it has been found out that Harder  parts of the body tend to remain preserved for a long time  because they  naturally have minerals deposited in them and may only be reduced,  but the softer part or tissues do not get preserved for a long time because being made up of polymer can be disintegrated easily by natural biological and physical processes.

The order of which material will likely fossilize is

1.)mammal teeth

2.)bones of an adult mammal quickly buried

3.) bones of an adult mammal left on the surface

4.)soft body parts of any animals

Reason,

--Teeth and bones biologically contain calcium but the teeth is more tougher and durable than the bone, Even when a  body is decomposed, the teeth most times are not  affected at all.

Bones of an adult mammal left on the surface will decompose faster than the one buried because of the biological (natural decomposing ) and physical processes(temperature, wind, sunglight, rainfall ) which will both act on it at the same time because of its exposure.

- soft body parts of any animals will decompose fastest as bacteria will feed on it immediately since it lacks minerals that can elongate preservation.

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4 years ago
What are two effects of regular participation in sports on your overall health?
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Participation in sports can help in weight management and make your immune system stronger.
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3 years ago
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