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harkovskaia [24]
3 years ago
6

How do you do these ?

Biology
2 answers:
Mandarinka [93]3 years ago
6 0
1. None of the above. 2. All of the above. 3. Stream moving fast over rough terrain.
Eddi Din [679]3 years ago
5 0
Pollution is affecting your water supply
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Some people have low levels of calcium circulating in the blood, a condition known as hypocalcemia. While for many this disorder
Andrew [12]

Answer:

Hypocalcemia is defined as low level of calcium in the serum.

It could be harmful to an individual in the following ways:

Convulsions, arrhythmias, tetany, and numbness in the hands and feet and around the mouth occur due to lowered threshold for depolarization causing increased responsiveness.

Life-threatening complications- Laryngospasm and Cardiac arrhythmias can arise.

Effects on cardiac output include:

(A) Negative chronotropic effect, or a decrease in heart rate.

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3 years ago
A group of tissues working together is _______. A. an organ B. a cell C. a compound D. an organelle
Wewaii [24]
A group of tissues working together is an organ.

ANSWER:

A. an organ
5 0
3 years ago
Primate evolution and behavior, such as hunting skills, have been directed in part by the development of depth perception. What
Morgarella [4.7K]

Answer:

The answer is the placement of the eyes.

Explanation:

Developing depth perception through evolution for reasons such as hunting and movement was crucial in the survival of the species and it was made possible by the change in the location of the eyes to the front of the head. Because of the location of the human eyes and the distance of approximately 6 centimeters between them, they perceive slightly different images of the world and this also helps with the depth perception.

I hope this answer helps.

4 0
3 years ago
The police know that the neighbor across from a house where a murder occurred sits on the porch nearly all day and believe he wo
AVprozaik [17]

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A subpoena

Explanation:

5 0
3 years ago
The ____________ in the alveoli is 40 mm Hg and that of the blood entering the pulmonary capillaries is ____________ . This caus
Oxana [17]

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
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