What types of epithelial cells would you expect to find in an area of the body where diffusion of nutrients needs to occur?1) Cuboidal
2) Columnar
3) Squamous

Answers

Answer 1

Answer:

The type of epithelial cells that would be found in an area of the body where diffusion of nutrients needs to occur is squamous.

Epithelial cells refer to the cells that are vital in the lining of the surface of the body. Epithelial cells can be found on the blood vessels, skin, and urinary tract.

It should be noted that epithelial cells are important as they act as a protective barrier and help in stopping viruses from getting inside the human body.

It should be noted that squamous can be found in an area of the body where diffusion of nutrients needs to occur. They're flat cells and they are usually thin and resembles the scale of fishes.

In conclusion, squamous can be found on the surface of the skin.

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Answer 2

Answer:

Answer: C. Squamous

Explanation:

I got it right on my test...lol

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Which of the following processes uses electrical charges to separate substances? a. Spectrophotometry b. Chromatography c. Centrifugation d. Electrophoresis

Answers

The process that uses electrical charges to separate substances is "d. Electrophoresis."

What is electrical charge?

Electrical charge is a fundamental property of matter, and it is associated with the presence of elementary particles called electrons and protons.

Electrical charge is a fundamental concept in physics and plays a crucial role in many natural phenomena, including the behavior of atoms, the operation of electrical circuits, and the functioning of electronic devices.

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What types of reactions is shown below? check all that apply 2H2O2–>2H2O+O2 A) synthesis
B) decomposition
C) combustion

Answers

Answer:

Type of reactions :

Decomposition (O is seperated)

B is the answer to your question ....

A light twig is barely floating on the surface of water. What will most likely happen to the twig if a drop of dishwashing detergent is added near it?It will float easily because soap disrupts the intermolecular forces of water.It will sink because soap increases the intermolecular forces of water.It will sink because soap disrupts the intermolecular forces of water.It will float easily because soap increases the intermolecular forces of water.

Answers

Answer;

- It will sink because soap disrupts the inter-molecular forces of water

Explanation;

-A light twig is barely floating on the surface of water. if a drop of dish washing detergent is added near it then it will sink because soap disrupts the inter- molecular forces of water.

-The twig was initially floating due to the force of surface tension created by the inter-molecular forces between water molecules. When soap is added to the water, the twig will be driven to sink by the disruption of the water's surface tension. This is because soap is a surfacant that is amphipathic and thus disrupts the inter-molecular forces between water molecules that are responsible for surface tension.

What is the mass/volume percent of a solution with 75g of Na2CO3 dissolved in 20.0 g of water?11%

9.3 %

30%

7.5%

Answers

Answer:

percent by mass = 79%

Explanation:

Data Given:

mass of solute (Na₂CO₃) = 75 g

mass of solvent ( water ) = 20 g

mass percent of solution = ?

Solution:

Formula used to find percent by mass

mass of solute / mass of solution x 100 . . . . . . (1)

first we have to find mass of solution

mass of solution = mass of solute + mass of Solvent . . . . (2)

put values in equation 2

mass of solution = 75 g + 20 g

mass of solution = 95 g

Now,

put values in equation 1

Percent by mass = mass of solute / mass of solution x 100

Percent by mass = 75 g / 95 g x 100

Percent by mass = 79 %

so,

The percent of the solution by mass = 79%

***Note:

The same work can be used for the other values too i.e. if you have 20 g of solute and 75 g solvent.

Answer:

The answer is 78.9%

Explanation:

The percentage weight in volume indicates the mass of solute per volume. We will use the% weight/volume formula to calculate what the exercise asks for, as follows: $%weight/volume=(solute weight)/(solution volume)x100%= (75 g)/(75+20)= 78.9%$

$percent Weight/volume=(solute weight)/(solution volume)x100=(75 g)/(75+20)x100=78.9$ %

Which tiny, round “factory” puts together protein and is often found in the endoplasmic reticulum?A.
chromosome

B.
chloroplast

C.
Golgi body

D.
ribosome

Answers

In the cytoplasm, ribsomal RNA (rRNA), a type of RNA, andprotein combine to form a nucleoprotein called a ribosome. The ribosomeserves as the site and carries the enzymes necessary for proteinsynthesis. They are often takes the shape of small round particlesattached in the endoplasmic reticulum. The ribosome attaches itself to m-RNAand provides the stabilizing structure to hold all substances in position asthe protein is synthesized. Several ribosomes may be attached to a single RNAat any time.

i believe that the answer is B , chloroplast. you can work out the problem any other wat too.

i hope this helps

Consider the reaction below. 2Al2O3 mc031-1.jpg 4Al + 3O2 How many moles of oxygen are produced when 26.5 mol of aluminum oxide are decomposed?

Answers

2Al₂O₃ ----> 4Al + 3O₂
2 moles 3 moles

2 moles of Al₂O₃ ---------- 3 moles of O₂
26,5 moles of Al₂O₃ ------ X
X = (26,5×3)/2
X = 39,75 moles of O₂

:)

Answer:

the answer is 3;4

Explanation:

i did the Assignment on edge

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