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GREYUIT [131]
4 years ago
9

What do you think really happened to the people of easter island?

Biology
1 answer:
BaLLatris [955]4 years ago
4 0
Easter Island is a small 63-square-mile patch of land — more than a thousand miles from the next inhabited spot in the Pacific Ocean. In A.D. 1200 (or thereabouts), a small group of Polynesians — it might have been a single family — made their way there, settled in and began to farm. When they arrived, the place was covered with trees — as many as 16 million of them, some towering 100 feet high.

These settlers were farmers, practicing slash-and-burn agriculture, so they burned down woods, opened spaces, and began to multiply. Pretty soon the island had too many people, too few trees, and then, in only a few generations, no trees at all.

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Masses of gray matter within the central nervous system are
Ludmilka [50]

Answer:

The correct answer is: neuronal cell bodies, neuropil, and glial cells.

Explanation:

Nervous tissue can easily be classified in grey and white matter. Both of these matters are located in the Central Nervous System.

These specific names are given by the color these structures have. White matter consists mostly of axons, and is white because the axons are surrounded by myelin, which is a structure made of fat.

<u>Grey matter </u><u>is composed of the bodies of neuronal cells, neuropil and glial cells. The glial cells found in the grey matter are astrocytes and oligodendrocytes.</u>

3 0
4 years ago
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What is the difference between white and red blood cells?
blsea [12.9K]

Red blood cells carry oxygen; white blood cells fight disease.

3 0
3 years ago
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Which of these changes in the food web would cause a decrease in the population of bald eagles
bogdanovich [222]

The correct answer is C. A decrease in the population of sea ducks

Explanation:

Food webs are diagrams that represent the relationship of organisms in an ecosystem by showing feeding or predatory relationships. This means food webs show which organisms eats another organism. In the case of the food web presented, this shows bald eagles fed on sea ducks and large piscivorous fish, this implies for survival bald eagles need from these two organisms. In this context, a decrease in the population of sea ducks (option C) would cause a decrease in the population of eagles because fewer sea ducks imply less food for eagles, and therefore fewer resources to survive.

6 0
3 years ago
One degree of latitude on the earth's surface is equal to:
satela [25.4K]

\huge\boxed{\text{D.}\ 60\ \text{nautical miles}}

1 minute of latitude is equal to 1 nautical mile.

Just like an hour of time, there are 60 minutes in a degree of latitude.

Therefore, there are 60 nautical miles in each degree.

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3 years ago
Acetic acid, commonly known as vinegar, is sour. Which functional group is present in acetic acid?
weeeeeb [17]
The carboxylic group.
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3 years ago
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