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coldgirl [10]
3 years ago
12

Bacteria like cyanobacteria help to cycle atmospheric elements. True False

Biology
1 answer:
Elis [28]3 years ago
6 0
The correct answer is True. 
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7th grade helpppppppppp
Vikki [24]

Answer:

relax kalang punta ka rito sa lugar nato

Explanation:

✌️✌️✌️

5 0
3 years ago
Prostaglandins are a class of eicosanoids, fatty acid derivatives with a variety of extremely potent actions on vertebrate tissu
leonid [27]
I think it is true...

I'm not quite sure.
8 0
3 years ago
Explain how it is possible for nutrients to be transported to the cells of a flatworm with no circulatory system.
Alisiya [41]

Answer:

Flatworms are beings that do not have a heart, veins, arteries, capillaries, hemolymph, or some type of circulatory fluid. Their circulation occurs between cells or intercellularly and they are responsible for transporting substances by diffusion from cell to cell.

Explanation:

Flatworms are considered multicellular eukaryotic organisms. This implies that in their cells they have a cellular nucleus, in which the DNA is contained, structuring the chromosomes. Likewise, they are made up of several types of cells, each one specialized in a specific function. They lack a structured circulatory system as such. Because of this they do not have specialized structures such as a heart or blood vessels, however, the circulation of certain substances is established between their cells. This is done thanks to the diffusion process. Substances pass from one cell to another through this process.This does not apply to all flatworms, since in some species of bog and digenae there is a certain organization and some very small conducting vessels known as the endolymphatic system, the which forms a kind of plexus in the parenchyma.It should also be noted that some species do not even have a digestive system, being the digestive tract the one in charge of digestive functions and the distribution of the nutrients they receive.

5 0
3 years ago
Match each function with the correct enzyme class.
Savatey [412]

Answer:

The correct matching pairs are:

1) - B)

2)- E)

3) - A)

4) - F)

Explanation:

<u>Transferases (B)</u>: Transeferases is the class of enzyme that catalyzes reactions involving the <u>transfer of certain functional groups. (1)</u>

Example: Transaminase transfers nitrogenous groups

<u>Isomerases (E)</u>: Isomerases is the class of enzyme that catalyzes <u>isomerization reactions and intramolecular rearrangements. (2)</u>

Example: Triosephosphate isomerase interconverts aldoses and ketoses

<u>Oxidoreductases (A)</u>: Oxidoreductases is a class of enzyme that catalyzes <u>redox reactions (3) </u>which involves the simultaneous transfer of electron.

Example: Alcohol oxidoreductases acts on the alcohol functional group

<u>Ligases (F)</u>: Ligases is a class of enzyme that catalyzes reactions involving <u>chemical bond formation between two molecules. (4)</u>

Example: DNA ligase joins DNA fragments

5 0
4 years ago
S
Zolol [24]

our thyroid glands plays a main role in a human body. It secretes thyroxine and calcitonin. In which thyroxine help in growth and cellular metabolism and calcitonin helps to regulates calcium concentration in blood . If thyroid gland stops working then there is low level of calcium in our blood, which leads to mental and hormonal disorder. In this way a person's blood calcium level would be affected if his/her thyroid gland stops working.

5 0
2 years ago
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