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Gnom [1K]
2 years ago
10

What is the source of almost all energy on Earth?

Biology
2 answers:
Rus_ich [418]2 years ago
7 0

I believe it is the sun, have a good day!

ella [17]2 years ago
7 0

Answer:

Sun

Explanation

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What is a large membranous structure found in the cytoplasm of eukaryotic organisms?
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Answer:

Nucleus

Explanation:

If you're asking about whats the largest membranous structure in a eukaroytic cell, its likely the nucleus.

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What PHYSICAL characteristics occur during the digestive process?
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Sphinxa [80]
<h2>Puberty</h2>

Explanation:

  • Puberty is defined as  <u>the physical changes that occur in the body as sexual development is stimulated by hormonal changes.</u>

Puberty is the phase of a person's life during which several changes takes place in his body making him sexually mature. Development of secondary sexual characters is also seen in puberty.

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In females puberty occurs between the age of 10-14 years. It is characterized by onset of menstrual cycle. The hormone that initiates puberty in females is estrogen. The secondary sex characters like enlargment of breast, broadening of hip, menstruation etc. become prominent.

6 0
3 years ago
22. Why might kiwi birds and ostriches have vestigial wings? Explain why these birds do not need to be able to fly in
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Answer:

kiwis, ostriches, and penguins, seem to have gotten rid of their wings due to the enviornments low population in the animals natural predators, or in order to focus on a different function, such as running or swimming  

Explanation:

4 0
2 years ago
what are two planets that humans have explored with space probes? what do scientists hope to learn from these missions?
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Answer:

Mars/Saturn

Scientists hope to learn if and why these planets are uninhabited in contrast to earth, which is filled with vibrant species of flora and fauna, and if these planets may someday be able to be inhabited.

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