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JulsSmile [24]
3 years ago
12

What impact does reforestation have on the environment?

Biology
2 answers:
Alexeev081 [22]3 years ago
7 0

Answer:

B.) positive - reforestation provides a sustainable plan to use a renewable resource.

Explanation:

user100 [1]3 years ago
3 0

Answer:

positive - reforestation provides a sustainable plan to use a renewable resource

(Please let me know if the answer is incorrect so I can edit it :) )

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Which of the following would be considered the strongest evidence that two species are related to one another?
pychu [463]
Strongest evidence points towards shared taxon
5 0
3 years ago
Different layers of the earth exist due to what?
nevsk [136]
The earth was once formed by molten layers of the earth and over time layers began to form due to the relative melting points. hope this helps :D
6 0
3 years ago
What are the 4 different types of bases in DNA and how do they pair?
Radda [10]

Answer:

the 4 different types of bases - adenine, thymine, cytosine, and guanine

adenine always pairs with thymine, and cytosine always pairs with guanine.

(dont know how they pair)

Explanation:

8 0
3 years ago
In the fluid-mosaic model of the plasma membrane, the phospholipid molecules are oriented so that the _____________ heads are fa
saveliy_v [14]

Answer:

Hydrophilic heads facing exterior

Hydrophobic tails facing interior

Explanation:

In 1972, the fluid mosaic model was proposed to describe the structure of the plasma membrane. This model describes the plasma membrane to possess components including phospholipids, cholesterol and proteins. The phospholipid component is composed of glycerol, two fatty acids and a phosphate-containing head, which are arranged in two adjacent layers forming the phospholipid bilayer in the membrane of biological organisms.

Phospholipids have both the hydrophilic and hydrophobic region. Hence they are said to be AMPHIPATHIC.

The head of the phospholipid is negatively charged due to its phosphate content, making it polar and hydrophilic i.e. water-loving. This hydrophilic head faces the exterior of the cell in order to interact with fluids.

The tails of the phospholipid are long fatty acids that keep away from water i.e. hydrophobic. Due to their water-fearing nature, they avoid water and face the interior of the cell, where each tail face each other.

8 0
3 years ago
Scientists now know how much carbon dioxide was present in the atmosphere as far back as 800,000 years ago. How did they obtain
sertanlavr [38]

Answer:

Ice core records.

Explanation:

  • The origin of man took place about 200,000 years ago and looking at the records that are stored in the ice cores before the existence of man which were found by the deep drilling of the antarctic and Greenland shows that how the temperatures have changed and as the example of the carbon in the air.
  • As in the 800,000 years go the Carbon dioxide levels were on average of 170 to 280 ppm and now they have crossed the 400 ppm mark also at that time the sea levels were high as 80 feet and now are more than 100 feet.
3 0
3 years ago
Read 2 more answers
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