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ehidna [41]
3 years ago
7

What is the cell membrane?

Biology
2 answers:
marysya [2.9K]3 years ago
5 0

Answer:

B is the answer

Explanation:

Yanka [14]3 years ago
3 0
B it covers cells beibg an outer layer ...................
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Can anyone help me with this question?
Ghella [55]

Answer:

Enzymes lower the activation energy that is needed, making reactions happen at a lower temperature that they could without the enzyme. This speeds up the rate of reaction.

Explanation:

6 0
3 years ago
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Forensic scientists studying the human body at crime scenes need to be ready to face _____. the criminal the jury the unpleasant
krek1111 [17]

Answer:

Option (3).

Explanation:

Forensic science may be defined as the branch of the applied science that mainly deals with the investigation of the crime science department. This is an interdisciplinary subject that includes crimes with science and judiciary laws.

Forensic scientist has the right to investigate at the crime scenes. The scientist should be ready to suffer from the unpleasantness of decaying and dead flesh of humans and other organisms.

Thus, the correct answer is option (3)

4 0
3 years ago
Shifting biomes could have consequences for the regions in which the shifts occur. Read the two cases below and decide which con
Nata [24]

Answer:

increased risk of wildfires- both

local economy suffers- Case 1

carbon storage decreases - Case 2

agricultural production decreases - Case 1

carbon storage increases -  Case 1

disease vector range changes - Case 2

decreased water availability - Case 1

local economy thrives - Case 2

species range changes - Case 2

Explanation:

Fires are common to  taiga biomes. Owing to the fact that the biome in case 1 changed from an agricultural community to a grassland and subsequently to a desert, agricultural productivity will decrease, the local economy will suffer, water availability is decreased and local economy suffers as a consequence of desertification.

On the other hand, in case 2, the diseases vector range as well as species range changes due to the change in the species of foxes from Artic foxes to red foxes that carry rabies. Carbon storage decreases as the taiga biome acts as a carbon sink. The local economy thrives due to timber production.

Lastly, species range changes both in case 1 and case 2 since there is a loss of species. Species range is the area where a particular species can be found during its lifetime. Certainly, the range of area where species are found changed in cases 1 and 2.

8 0
3 years ago
Indetify the atmospheric layer within which most of the volcanic ash was transported
bearhunter [10]
I would say A since it is closest to the mouth of the volcano and says 20 cm
5 0
3 years ago
Oxygen has an atomic number of 8. The n = 1 energy level has two electrons, and the n = 2 energy level has six electrons. Oxygen
natita [175]
<span>Valence is defined as number of electrons that are present in the outermost orbital. Oxygen is in the 16th column of the periodic table and the total number of valance electrons is determined by units place digit of the column position which is 6 for oxygen. The outermost orbital is the high energy level and there are two in that orbit. So the valance is +2.</span>
4 0
3 years ago
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