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Katen [24]
2 years ago
11

How does the cell wall protect a plant cell?

Biology
1 answer:
Juli2301 [7.4K]2 years ago
7 0

Answer:

A

Explanation:

A cell wall is something only plants have. It is more secure and protectable than a cell membrane (which is what C describes and what humans have). B is not true, it does not help store food, and cell wall is not inside the cell, as said in D.

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1. Which of the following is true about chemical energy?
avanturin [10]
What is true of chemical energy is that chemical energy can be stored more efficiently as glucose than it can be as ATP. All the other answers in this case don't really apply. The correct answer is therefore A.

When ATP is broken down to ADP we get a release of energy - B and C are therefore wrong. Energy is broken in more ways as only ADP - D is also wrong. Only A stays as the correct answer. 
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A close friend has joined a clinical trial. When you ask her about the types of treatment she might be given, she tells you that
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Answer:

A. double-blind

Explanation:

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The following passage explains the relationship between tectonic plates and earthquakes. Which sentence states incorrect informa
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Answer:

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Explanation:

3 0
3 years ago
Select the correct answer.
Paha777 [63]

Answer:

The answer is; D

Archaebacteria are early life forms on earth. They utilized the process of chemosynthesis to make organic molecules from inorganic molecules and for energy. The word archae means ‘ancient’ life forms. These single-celled organisms evolved around sulfur-rich environments of the hydrothermal vents.

7 0
4 years ago
Which type of respirator delivers clean air to the breathing zone from a tank worn by the operator?
MissTica

An air-purifying respirator that employs a blower to pump air through filters or cartridges and into the user's breathing zone is known as a powered air-purifying respirator, or PAPR. In comparison to a powered or negative-pressure half mask, this generates a positive pressure inside the facepiece or hood, increasing protection.

<h3>What kind of respirator offers a separate source of clean air?</h3>

For entry into or exit from settings regarded as IDLH, Self-Contained Breathing Apparatus (SCBAs) are employed. They can be either open circuit or closed circuit and contain their own breathing air supply.

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Air-purifying and supplied-air respirators are the two main categories of respirators. Respirators that purify the air remove airborne pollutants such particles, dangerous vapors, and/or gases. They are suitable for use in surroundings with low levels of pollution and in areas with enough oxygen.

<h3>When should you use an air purifying respirator?</h3>

a small, unproven area. a lack of oxygen in the atmosphere. Firefighting. Contaminants with a lower explosive limit (LEL—the concentration at which a gas or vapour could ignite) of at least 20%

learn more about air-purifying respirator here

brainly.com/question/3627134

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