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Sati [7]
2 years ago
7

What causes most of the stress humans have put on the environment?.

Biology
1 answer:
stepan [7]2 years ago
6 0

The environment has something called the carrying capacity. This is the amount of life it can sustain. Limiting factors, like food, water, and light, lower the carrying capacity because there is only a limited amount available.

Overpopulation causes stress on the environment because the amount of organisms is over the carrying capacity. (To read specifically about the overpopulation of humans, see this question). This leads to a struggle for survival because the organisms are undernourished. The struggle causes damage to other organisms and the environment because of the struggle for nutrients.

Plants try to get the most soil for nutrients, crowding out other plants. Too many animals will destroy the environment around them to get more food, including different food than they usually consume, leading to struggles with other animals.

This kills off other plants and animals in the process, and the loss of biodiversity is extremely dangerous to the environment.

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Describe how the plasma membrane controls what goes into and comes out of a cell
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Answer:

The cell membrane controls what goes in and out by having protein channels that act like funnels in some cases and pumps in other cases. Passive transport does not require energy molecules and happens when a funnel opens in the membrane, letting molecules flow through.

4 0
3 years ago
Find, in km/h, the rate at which a car travels if it<br>goes 38.5km in 35 min.​
dimaraw [331]
Use this to help you. So here velocity is not given… so we have to calculate velocity of the car from given data. Car travel 60 km in 35 minutes. Frist of all we have to convert 35 minutes in hours by deviding 35 to 60 hour = 35/60

Next we have to calculate distance in kilometres so distance =velocity ×time.

Velocity =distance / time

Velocity =60/(35/60)

Velocity=3600/35

Distance = velocity ×time

In one hour… it will travel…

Distance =(3600/35) ×1.

By dividing you will get the answer…hope it will
5 0
4 years ago
What type of sign warns you to watch right and left for cross traffic?
sweet-ann [11.9K]
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6 0
3 years ago
The contractile unit in the muscle cell is called the
Debora [2.8K]

Answer:

c. Sarcomere

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The sarcomere is made up of a protein complex, the most important of which are actin and myosin. In the presence of Ca2 +, the ends of the myosin bind to nearby actin molecules and fold with great velocity. The actin filament then moves to the center of the sarcomere, triggering the approach of the two Z lines. This causes the sarcomere to shrink and, to a large extent, lead to contraction of the entire muscle.

4 0
4 years ago
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Answer:no

Explanation:

5 0
3 years ago
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