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grandymaker [24]
3 years ago
13

What are the four classes of nutrients?

Biology
1 answer:
Harrizon [31]3 years ago
7 0

Answer:

Nutrients are grouped into macronutrients and micronutrients. Carbohydrates, proteins, fats and water are macronutrients, and vitamins and minerals are micronutrients. Although most foods are mixtures of nutrients, many of them contain a lot of one nutrient and a little of the other nutrients.There are six major nutrients: Carbohydrates (CHO), Lipids (fats), Proteins, Vitamins, Minerals, Water.

hope this answer helps you.....

please marks as brainliest.. thank you......

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Temperature inversions occur naturally in the stratosphere and thermosphere, but also occur closer to the surface of earth in th
skelet666 [1.2K]

Temperature inversion or thermal inversion is a phenomenon during which the temperature increase when there is an increase in the altitude. It is an uncommon process that happens in the troposphere-the layer of atmosphere closest to the earth.  

When there is an increase in temperature with altitude that warm air acts as a blockage for the cool air near the surface of the earth. So this is just opposite to the normal behavior of the air, where it becomes cooler with an increase in altitude.

So how air circulation behaves during inversion?

So as we said that the cool air nearer to the earth will be blocked by a layer of warm air. This blockage will hinder the circulation of air upwards from the lower layers. Let’s see how:

• As we know that, warm air is less dense and more buyout than cool air and normally less dense warm air is close to the earth and cool air is in above layers. But when the process is reversed, this warm air acts like a blanket for the proper circulation of air. Due to this, many environmental pollutants which normally leave the earth during air circulation get trapped in our air.  

• The trapped environmental pollutants like nitrogen oxides and hydrocarbons get convert into harmful ozone that ultimately deteriorates the quality of air and causes problems like smog.

• The improper air circulation also causes suspension of the harmful gases near the earth instead of allowing them to leave the earth atmosphere. This ultimately causes air pollution.  

• When smoke will not rise, carbon dioxide will be build up in the atmosphere; this will cause greenhouse effect and global warming.

Therefore, air circulation behaves very different during temperature inversion process and poses hazardous effects on global climate.

Hope it helps! :)

6 0
3 years ago
The nervous system contains not only neurons but also other cells called: axons. glial cells. dendrites. myelin cells.
stealth61 [152]
<h3><u>Answer;</u></h3>

Glial cells

<h3><u>Explanation</u>;</h3>
  • The nervous system is made up of neurons and glia. Neurons are specialized cells that are capable of sending electrical as well as chemical signals
  • Glial cells or neuroglia are non-neuronal cells in the central nervous system (brain and spinal cord) and the peripheral nervous system.
  • <u>Glial cells are cells that provide support functions for the neurons by playing an information processing role that is complementary to neurons.</u>

6 0
3 years ago
How does the villis aid in absorption​
Ad libitum [116K]

Answer:

The villi in the small intestine provide a large surface area with an extensive network of blood capillaries. This makes the villi well adapted to absorb the products of digestion by diffusion and active transport.

Explanation:

4 0
3 years ago
Why is it Important that cell membrane contain openings into cell ?
Ira Lisetskai [31]

Answer:

Embedded in the lipid bilayer are large proteins, many of which transport ions and water-soluble molecules across the membrane. Some proteins in the plasma membrane form open pores, called membrane channels, which allow the free diffusion of ions into and out of the cell.

6 0
3 years ago
Which macromolecules make up most of the structure that is shown?
finlep [7]

my best guess would be C

6 0
3 years ago
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