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kolbaska11 [484]
4 years ago
12

How are grasslands formed?

Biology
1 answer:
agasfer [191]4 years ago
3 0

Answer:

Grasslands arose during the period of cooling and drying of the global climate, which occurred during the Cenozoic Era (65.5 million years ago till present).

Grasslands  are said to be in between a forest and a desert when it comes to rainfall ( they do not receive enough rainfall to grow trees like a forest but they contain lots of grass so they receive more rain than a desert)

Explanation:

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Emma’s neighbor had a child with DiGeorge Syndrome, a birth defect in which children are born without a thymus gland. Emma had n
Irina18 [472]

Answer:

The thymus gland can be described as a gland that functions both for the endocrine system and for the immune system.

In the immune system, thymus gland plays a vital role in the development of the T-cells. If thymus gland wouldn't be there, then there will be a reduction in the T- cells of the body. Hence, the immunity of the body will be suppressed.

The thymus, till the time it is active, also protects the body from autoimmunity. If thymus is absent, then there will be suppressed autoimmunity in the child.

7 0
3 years ago
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charle [14.2K]

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7 0
4 years ago
Why are proteins considered organic molecules ?
Gwar [14]

Answer:Proteins are considered organic molecules because they are made up of carbon atoms with hydrogen, oxygen and nitrogen.

Explanation:

7 0
3 years ago
Hi pls help me im struggling with this question for a while i would really apreciate it
sergiy2304 [10]

Answer:

Allopatric speciation

Explanation:

Where a population forms new species due to geographical barrier

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3 0
3 years ago
On the Galapagos islands Darwin observed tortoises with a dome and saddle shaped shells. How did Darwin observation of these tor
Nataly [62]

Hi

It is true that on the Galapagos islands Darwin observed tortoises with a dome and saddle shaped shells, you can see both in attached image.

Darwin observed that Galapagos Tortoises had the shells with different shapes depending on the Island they live, For example: The tortoises with saddle shaped shells were able to reach up to eat leaves of plants while the tortoises with dome shaped shells would not reach up and they would eat food from on ground sources. This made him think that the differences in tortoise shell is also a strong evidence that indicates that how tortoises have adapted themselves to better get their food as per the available resources and how they have evolved from same ancestral specie into two different species. This point also helped him in proposing the theory of evolution by natural selection.

Hope it helps!

5 0
3 years ago
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