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irinina [24]
3 years ago
14

How was the Earth different 4.6 billion years ago than it is today

Biology
1 answer:
vfiekz [6]3 years ago
8 0
The geological features were different. And humans development was different.
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The hormone insulin and its effect on the body is an example of _[blank]_.
Nana76 [90]

Answer:

negative feedback

Explanation:

Insulin reduces blood sugars when the levels are high in the blood. The hormone  is produced by the pancreas and binds on receptors of cells. This initiates cell signaling mechanisms that signal the cell absorb sugars. When the blood sugars get back to normal, insulin production is reduced.

8 0
3 years ago
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A researcher investigates a recently discovered species of plant. The plant has vascular tissues and exhibits a sporophyte and a
Anna71 [15]

The plant contains vascular tissue and has an alternation of generation. But, it lacks seeds. So, the plant is a Pteridophyte.

  • Vascular tissues are absent in thallophytes and bryophytes. They are found in pteridophytes, gymnosperms and angiosperms.
  • The sporophyte and gametophyte generation is common in bryophytes and pteridophytes.
  • Seeds are produced in plants that come under the group gymnosperms and angiosperms. The presence of seeds is the main characteristic of these groups.
  • Thallophytes, bryophytes and pteridophytes lack seeds. The reproduction in plants that comes under these groups occurs with the help of spores.

Thus, the recently discovered species of the plant should be classified based on the presence of vascular tissues, gametophytes and sporophytes. As pteridophytes contain vascular tissues, sporophytes and gametophytes and lack seeds, the plant is a pteridophyte

Learn more about pteridophytes here:

brainly.com/question/12375814

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6 0
2 years ago
A stream or river that runs into another stream or river is called a​
Maksim231197 [3]

Answer:

tributary

Explanation:

A tributary is a river that runs into another river.

4 0
3 years ago
A cell has undergone determination to become an endocrine gland cell. if it is transplanted to a leg muscle, what do you think w
Leviafan [203]

The endocrine gland cell will grow as an endocrine gland cell in the leg muscle when it is transplanted to a leg muscle.

<h3>What is determination of cell?</h3>

A fundamental part of cell determination is the ability of cells to detect different chemicals within different regions of the embryo.

One well-studied example of the molecular basis of cell determination and differentiation involves the development of mature muscle cells in vertebrates.

<h3>What is endocrine gland cell?</h3>

An endocrine gland is organ that makes hormones that are released directly into the blood and travel to tissues and organs all over the body.

Thus, what will happen to cell that has undergone determination to become an endocrine gland cell is the endocrine gland cell will grow as an endocrine gland cell in the leg muscle.

Learn more about endocrine gland here: brainly.com/question/8162998

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5 0
1 year ago
Que es un gameto de las plantas no humano
Ainat [17]
Haploid generations produce gametes through mitosis.
5 0
3 years ago
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