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Vilka [71]
3 years ago
13

Which type of cells contain a cell wall?

Biology
2 answers:
Elis [28]3 years ago
4 0
A cell wall is a fairly rigid layer surrounding a cell located outside of the plasma membrane that provides additional support and protection. They are found in bacteria, archaea, fungi, plants, and algae. Animals and most other protists have cell membranes without surrounding cell walls.
AleksandrR [38]3 years ago
3 0

Answer:

A cell wall is a fairly rigid layer surrounding a cell located outside of the plasma membrane that provides additional support and protection. They are found in bacteria, archaea, fungi, plants, and algae. Animals and most other protists have cell membranes without surrounding cell walls.

Explanation:

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What is a secondary function of the lymphatic system?
katrin2010 [14]

Answer: Fighting infection

Explanation:

Lymphatic system is a type of circulatory system in all vertebrates. It is a network of tissues ,blood vessels, and organs. The primary function of the lymphatic system is to control the fluid balance by collecting the fluid present in excess from the tissues and depositing them in the stream of blood. The secondary function of the lymph system is the production of lymphocytes (white blood cells) which fights against the disease causing pathogens. Hence, fights against infection.

6 0
3 years ago
Read 2 more answers
________ drugs relax smooth muscle in the walls of the arteries, cause the arteries to dilate, and are used to treat hypertensio
Vikki [24]

Answer:

Peripheral vasodilators

Explanation:

Peripheral dilators are a form of vasodilators that are involved in the dilation of the most distal parts of the vascular system such as the venules and arterioles. It does this by relaxing the smooth muscle of the blood vessels that are wide open, therefore making it easier for the heart to pump blood through  blood vessels and also the whole body.

In the treatment of hypertension, the peripheral dilators lower blood pressure by decreasing the total peripheral resistance of the arteries. In addition to the treatment of hypertension, they are also used in the treatment of heart failure and acute myocardial infarction.

An example is isoxsuprine.

3 0
3 years ago
Frogs exchange gasses through the ____________________ and the ______________________.
Alona [7]
Frogs exchange gases through their skin and the lining of their mouths. This exchange of gases is referred to as respiration. During the larval stage in frogs development, it lacks functional lungs but they can take in oxygen through gills which are in process of metamorphosis. 
The gills take in oxygen when water is being passed over them. Once lungs are mature, they lose their gills and are able to bring in oxygen through lungs.
They rely on lungs to breath when they are active and they need more oxygen than what skin respiration alone can provide.
Although they have oxygen, most of their respiration occurs through the skin.
4 0
3 years ago
Why is biodiversity so high in tropical rainforests yet so low in tundra and desert biomes?
satela [25.4K]

Explanation:

The tropical rainforest is made up of a dense network of trees, shrubs and vegetation.

This zone on earth is the most biodiverse on the earth surface. It receives the highest insolation of all places on earth and so radiant energy here is very high.

  • Due to this, the net productivity is very high.
  • This implies that a wide range of food is available to support the diverse organisms.
  • Also, the wet and dry seasons provides a very conducive weather for most organisms to survive.

Tundra and deserts have low precipitation and the conditions are very harsh.

8 0
3 years ago
Carbohydrates are the primary source of energy for the human body,
Ipatiy [6.2K]

Answer:

If your body lacks enzymes that break down carbohydrates, it would be unable to get glucose molecules.

If you lacked the enzyme to digest proteins, you may not absorb enough amino acids.

Explanation:

Carbohydrates and proteins are the food materials that are used for the production of energy. Our body cannot absorb carbohydrate so it must be broken down into simpler substance such as glucose molecules by amylase, while proteins are broken down into simpler substances such as amino acids by pepsin enzyme.

7 0
3 years ago
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