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3 years ago

How does matter flow between trophic levels and among ecosystems?

Biology

1 answer:

Brut [27]3 years ago

3 0

Answer:

When one organism eats another, the matter, or carbon, nitrogen, and other essential elements, are transferred from one to the other. These elements move from the producers, to the consumers, and eventually to the decomposers, cycling the matter through the ecosystem.

Explanation:

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Describe why the earth experiences high and low tides.

umka2103 [35]

Because of the moons gravitational pull, is strong enough to pull the ocean around... I hope that helps!

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3 years ago

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What is the power house of the cell?

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Answer:

Mitochondria is the powerhouse of the cell

Explanation:

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3 years ago

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The table below shows the dimensions of two colored cubes.

Lelechka [254]

Answer: The correct answer is black because the product of its side and mass is lower.

Explanation: Density of a substance is defined as the mount of matter that can be stored in a given volume.

Mathematically,

$Density=\frac{Mass}{volume}$

As, density is inversely proportional to the volume of the substance.

The substance will be more denser if it has less volume and it will be less denser if the volume is more.

We are given two cubes having different sides.

Volume of the cube is calculated by using the formula:

$V=a^3$

where, a = side of the cube.

Black: The side of this cube is 2 and volume will be = $2^3=8cm^3$

Yellow: The side of this cube is 3 and volume will be = $3^3=27cm^3
$

As, the volume of black cube is less. So, this cube will be more denser.

Density of black cube: $\frac{48}{8}=6g/cm^3$

Density of Yellow Cube: $\frac{135}{27}=5g/cm^3$

Hence, black cube will be more denser because the product of its side and mass is lower.

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4 years ago

What is the correct type of circulatory system for members of class Reptilia?

Natalka [10]

Answer:

Closed the first one

Explanation:

In amphibians, reptiles, birds, and mammals, blood flow is directed in two circuits: one through the lungs and back to the heart, which is called pulmonary circulation, and the other throughout the rest of the body and its organs including the brain (systemic circulation).

most mammals, have closed cardiovascular systems. The two main circulation pathways in invertebrates are the single and double circulation pathways.

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3 years ago

5.) _______ is required for energy given to proteins in the phospholipid layer.

Rufina [12.5K]

Answer:

Explanation:

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4 years ago