BIOLOGY HIGH SCHOOL

A new recruit in the armed forces stands at attention on a hot afternoon. He decides to lock his knees, thinking it will make the standing easier. After a short while, he faints. What has occurred?

Answers

Answer 1
Answer: There are no options to choose from and this makes it hard to answer the question. I hope my answer is correct and comes to your help. The reason that the new recruit fainted was that he did not use muscular compression to return the blood to the heart and thus his brain became devoid of oxygenated blood, resulting in the new recruit getting fainted.

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You can usually tell the difference between a caldera and crater by studying _____.

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A crater is the top of a volcano's central vent and is funnel shaped. A caldera is a magma chamber that supplies materials to the volcano and eventually collapses when there's nothing more to supply.

What temperature is suitable for microorganisms to live in.

Answers

Hot and humid environments help micro organisms such as fungus and bacteria thrive.

Which of the following is true about the origin of the salts in Earth's oceans?

Answers

Answer:

C. Salts came from erosion of land.

Explanation:

What word is used to describe knowledge about the universe and the method of obtaining that knowledge?

Answers

The correct answer is science. The word science is used to describe the knowledge about the universe and the method of obtaining that knowledge. Science is the organized enterprise in which builds the knowledge in terms of testable explanation and theories about all matters in this universe.

During lung inflation Multiple Choice surfactant is found in the pleural cavity. the lungs cling to the internal surface of the chest wall as it expands. the intrapleural pressure is higher than the intrapulmonary pressure. the lungs expand outward with the chest wall as it expands.

Answers

Inflation

Explanation:

During inflation, air moves in the lungs when the air pressure within the alveolar spaces falls below the atmospheric pressure

The forces that normally cause changes in volume of the chest and lungs arises not only from muscle contraction but from the elastic properties of both the lung and the chest

The force required to maintain inflation of the lung and to cause airflow is provided by the chest and diaphragm (the muscular partition between chest and abdomen), which are in turn stretched inward by the pull of the lungs

Hence during lung inflation, the lungs cling to the internal surface of the chest wall as it expands

Cellular respiration is called an aerobic process because it requires a. glucose.
b. oxygen.
c. exercise.
d. light.

Answers

The answer is b. oxygen.

Answer:

b, oxygen!

Explanation:

i like to think of it like this:

1. oxygen = air (i know that air is not made up of just oxygen, this is just how i like to think of it)

2. air sounds like aer!

3. oxygen = aerobic
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