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Serggg [28]
3 years ago
5

What is the amount of land and water a person uses is considered as ​

Biology
1 answer:
azamat3 years ago
5 0
29% land , 71% water
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Describe the potential effects when a keystone species is removed from a community.
Vlad [161]

Answer:

Explanation:

A keystone species is the one which plays an important role in maintaining the structure of the ecosystem. On the keystone species many other species of the ecosystem are dependent upon.  

The potential effects associated with the keystone species includes the following:

1. No other species will be capable of filling the same ecological niche. Hence, the dependent organisms will suffer and the ecosystem will change drastically.

2. The ecosystem will be populated by the invasive species which will affects the population of native species.

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kolbaska11 [484]

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3 years ago
PLEASE I NEED THIS ASAP If you had a cell that was cube-shaped with a side length of 20µm, calculate the surface to volume ratio
weeeeeb [17]

Answer:

Ratio = 3\times 10^5

Explanation:

Side of a cube, a = 20 µm

a=20\times 10^{-6}\ m

The surface area of a cube, A = 6a² (a is side of the cube)

The volume of a cube, V = a³

The ratio of the surface to volume ratio of the cell will be given by :

R=\dfrac{6a^2}{a^3}\\\\R=\dfrac{6}{a}\\\\R=\dfrac{6}{20\times 10^{-6}}\\\\R=3\times 10^5

So, the ratio of the surface to volume ratio of the cell 3\times 10^5.

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2 years ago
If twins are born and one is a boy and one is a girl, are they identical or fraternal siblings?
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Both they willo still look a like

6 0
3 years ago
PLEASE HELP, 20 POINTS TO WHOEVER GIVES ME THE ANSWER!
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The different components that make up blood. Plasma, white blood cells, red blood cells, platelets.

Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in.
Red blood cells are responsible for carrying oxygen and carbon dioxide.
Platelets are responsible for blood clotting.

(White blood cells are part of the immune system and function in immune response.)



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3 years ago
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