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Artyom0805 [142]
3 years ago
11

What are three abiotic factors that the number and types of organisms in an ecosystem depend on?

Biology
1 answer:
trasher [3.6K]3 years ago
6 0
They may depend on PH of the water, nutrients, and sunlight. 
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<span>Four laws or principles are involved with the study of stratigraphy. They are </span><span>law of original horizontality, </span><span>law of superposition, law of original lateral continuity, and </span>law of cross-cutting relationships
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The ____________ in the alveoli is 40 mm Hg and that of the blood entering the pulmonary capillaries is ____________ . This caus
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Answer:

The <u>PCO₂</u> -carbon dioxide partial pressure- in the alveoli is 40 mm Hg and that of the blood entering the pulmonary capillaries is <u>45 mmHg</u>. This causes <u>carbon dioxide</u> to diffuse down its partial pressure gradient from the blood into the alveoli.

Explanation:

Gas exchange is a physiological process that involves the entry of oxygen into the body and tissues and the exit of carbon dioxide, a product of metabolic reactions.

At the pulmonary level, gas exchange occurs between the alveoli and the alveolar capillary, and the diffusion of gases across the alveolar-capillary barrier is dependent on a pressure gradient due to the partial pressure of gases.

In the case of CO₂ the diffusion goes from where the partial pressure is higher to where it is lower, i.e. <u>from the alveolar capillary, where the PCO₂ is 45 mmHg, to the pulmonary alveolus, where the PCO₂ is 40 mmHg</u>.

Learn more:

Gas exchange brainly.com/question/4469204

6 0
3 years ago
Create a Punnett square using the shape of pods trait crossing Heterozygous parents. What percentage of the offspring will be he
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What was the main point of paragraph 3
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The main point of paragraph 3 is that it is talking about  what the bone is and what it would look and feel like.

Explanation:

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The lowest layer of earth's atmosphere, in which we live, is called the ________.
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Troposphere. 

Hope it helps! 
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