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Inessa [10]
4 years ago
10

Why is the nitrogen cycle important for the survival of organisms in an ecosystem? A. The nitrogen cycle recycles nitrogen throu

gh an ecosystem, making it available to all organisms. B. The nitrogen cycle keeps organisms from consuming nitrogen in their ecosystem. C. The nitrogen cycle allows all organisms in an ecosystem to consume nitrogen instead of consuming each other. D. The nitrogen cycle stores nitrogen in safe places, keeping it from entering an ecosystem.
Biology
2 answers:
ddd [48]4 years ago
6 0

Answer:

A. The nitrogen cycle recycles nitrogen through an ecosystem, making it available to all organisms.

Explanation:

Nitrogen is a vital nutrient in ecosystems. The point of the nitrogen cycle is to recycle it so that it keeps being put back into an ecosystem.

For instance, animals need nitrogen in their diets. They get nitrogen by eating plants which obtain nitrogen from the soil. But how does nitrogen get into the soil? Well, decomposers can decompose dead organisms and recycle their nitrogen so that it enters the soil again. If there wasn't a nitrogen cycle, all the nitrogen would eventually be used up and ecosystems would suffer.  

Taya2010 [7]4 years ago
5 0

Answer:

The answer is A.

Explanation:

Nitrogen is an essential nutrient for plants and a significant component of proteins, which all animals need to grow, reproduce and survive. The nitrogen cycle converts nitrogen into compounds that plants and animals can use.

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The inside of a phospholipid bilayer is known as being:.
BARSIC [14]

Answer:

hydrophobic

Explanation:

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3 years ago
How does lung volume control inspiration?
Nesterboy [21]
An increase in volume DECREASES the pressure in the chest (pressure and volume vary inversely when temperature is held constant -- Boyle's law). Gas can only flow from an area of higher pressure to an area of lower pressure. It can't go uphill -- ever. It can only go from high to low pressure. When the diaphragm and intercostals contract, the diaphragm flattens and the rib cage rises. That increases the volume of the chest. That increase in volume decreases the pressure inside the chest (temperature is held constant -- because the temperature of the chest cavity does not change appreciably. It remains at body temp.). Air then flows from the area of higher pressure (atmospheric) to lower pressure (intrathoracic). That continues until the pressures are equal.

When the diaphragm and intercostals relax, the chest cavity decreases in size, the pressure increases to above atmospheric, and gas flows again from the area of higher pressure (intrathoracic) to lower pressure (atmospheric) until they are again equal.

It has nothing to do with the concentration of oxygen. You can ventilate a lung with ANY gas. It has to do with the change in pressure and only the change in pressure -- which is a function of the volume of the chest cavity.
3 0
3 years ago
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Which statement best explains why the atmosphere is considered an open system?
solong [7]

the answer is b. energy and matter can enter and leave.

7 0
4 years ago
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What are the genotypic and phenotypic distributions for the F1 and F2 generations from a cross between a chick with black (BB) f
lord [1]

Answer:

Please find the punnet square to this question as an attachment

F1 generation:

genotype = BW

Phenotype = Erminette offsprings

F2 generation:

genotype = BB (1): BW(2): WW(1)

Phenotype = 1 Black, 2 Erminette, 1White

Explanation:

This question involves a gene coding for feather color in chickens. The allele for black feathers (B) is codominant with the allele for white feathers (W) to form an erminette chicken (black and white speckles).

According to this question, a cross between a chick with black (BB) feathers and chicken with white (WW) feathers will result in an all erminette chicken (BW) in the F1 generation (see attached image)

Also, in the F2 generation got by self-crossing the Erminette genotype in the F1 generation (BW), the following genotypic and phenotypic ratios are observed:

Genotypic ratio = BB (1): BW(2): WW(1)

Phenotypic ratio = 1 Black, 2 Erminette, 1White

4 0
3 years ago
1. Oxygen molecules taken in per breath:
ExtremeBDS [4]

Answer:

Higher than

Explanation:

I hope i help!!

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3 years ago
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