A biology student is using illustrations of a virus, a bacteria, an amoeba, and a human skin cell to show the relative size of these microscopic objects. Which of these is the smallest microscopic object?

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Answer 1
Answer:

The answer is A: Virus


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What are the main functions of polysaccharides in plants?

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Polysaccharides are complex sugars or carbohydrates.

There are two types of polysaccharides in plants: cellulose and starch.

Polysaccharides generally perform two functions: energy storage and structural support.

What are polysaccharides also known?

Polysaccharides, also called glycan, are the form in which most natural carbohydrates occur. Polysaccharides may have a molecular structure that is either branched or linear.

What are the 4 types of polysaccharides?

Types Of Polysaccharides

Cellulose: The cell wall of the plants is made up of cellulose.

Starch: It is formed by the condensation of amylose and amylopectin.

Glycogen: It is made up of a large chain of molecules.

Inulin: It is made up of a number of fructofuranose molecules linked together in chains.

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Polysaccharides are complex sugars or carbohydrates. There are two basic types of polysaccharides in plants: cellulose and starch. Cellulose functions in cell wall structure and is composed of beta glucose monomers, and starch functions in energy storage.

A true-breeding pea plant with green seeds is crossed with another true-breeding pea plant with green seeds. What kind of seeds will the offspring have? A. yellow seeds B. green seeds C. yellow-green seeds D. some of each color

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The answer is B, with green seeds.
A true breeding pea plant with green seeds is crossed with another true breeding pea plant with B. Green seeds.

What type of weather are the upper part of Africa and the lower half of Asia most likely experiencing, based on the image?

Answers

Answer:

Dry Heat

Explanation:

Answer: dry heat

Explanation:

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How did the discovery of the rhesus factor affect society? A. More patients died from having a transfusion with the wrong rhesus factor. B. New treatments during pregnancy could prevent harm to the developing child. C. Less donated blood could be used in the treatment of patients. D. The number of blood types was reduced by half.

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Rhesus (Rh) factor is an inherited protein found on the surface of red blood cells.The Rh factor can cause problems if you are Rh negative and your fetus is Rh positive. The sentence that is associated here is B. New treatmentsduring pregnancy could prevent harm to the developing child.

New treatments during pregnancy could prevent harm to the developing child. Thus, option "B" is correct.

What is the rhesus factor?

The rhesus factor is an antigen present in the blood of humans and other primates, this is very important because the RH factors are uncompatible between them causing that for example is someone is RH positive and receives a tranfussion of RH negative it can cause its blood to coagulate in minutes, leading to death, so the discovery of the RH factor allowed to have safer trnasfussions of blood, and to help pregnant woman that had different RH factors than her babies to be treated in order to not harm the baby with their blood.

Thus, option "B" is correct.

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Are enzymes in saliva a example of a structural adaption or physiological?

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Answer:

structural adaptation

Answer:

Adaptational

Explanation:

It needs to adapt to the different variety of food and drinks.

Why are all cells very small?

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Answer:

Cells are small because they need to keep a surface area to volume ratio that allows for adequate intake of nutrients while being able to excrete the cells waste. That is why the cell needs to be small. The smaller it is, the larger the surface area to volume ratio is. ... This is why cells are so small.

explicación:

The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. ... That is why cells are so small.

Cells are small to have a high surface-to-volume ratio and efficient exchange of materials with their environment.

All cells are very small because they need to have a high surface-to-volume ratio. The surface area of a cell determines the amount of substances that can enter or leave the cell, while the volume of the cell determines the amount of metabolic activity that can occur. By being small, cells can efficiently exchange materials with their environment and carry out essential functions.



For example, red blood cells are small to pass through the narrowest capillaries and transport oxygen to different parts of the body. Bacteria are also small to facilitate their nutrientuptake and waste removal.



Furthermore, the small size of cells allows them to have a faster rate of diffusion, which is important for the exchange of gases, nutrients, and waste products across the cell membrane.

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