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frozen [14]
3 years ago
9

PLZ HELP!!!!!!!!

Biology
1 answer:
bixtya [17]3 years ago
4 0

The correct answer is option C, that is, both vitamin C and zinc are involved in immune system functions.  

Vitamin C is an important vitamin, which does an essential function in wound healing, immunity, and eye health. On the other hand, zinc refers to a dietary mineral, which also helps in immunity, protects the eyes from vision-robbing ailments, and also helps to heal wounds.  


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Explain why biodiversity in an ecosystem is important?
rusak2 [61]

Answer:

It is important because we need many different types of animals. Food chains are made up of many different links, and if there are fewer links, this will lead to animals not being able to feed. Biodiversity boosts the ecosystem and leads to an ecosystem that is self sustaining and able to produce things for people.

Explanation:

4 0
3 years ago
Please help ASAP! Describe at least one way in which each of Earth’s subsystems was altered during the Precambrian era.
trasher [3.6K]

The Precambrian era envelopes the major bulk of the history of the Earth, beginning from the creation of the planet approx 4.5 billion years ago and terminating with the origination of composite, multicelled forms of life approximately 4 billion years after.

The Precambrian refers to the earliest of the geologic ages that are signified by the distinct layers of sedimentary rock. The Earth was about more than six hundred million years old when life started. The planet had cooled down from its native molten state, creating a solid crust and oceans formed by water vapor in the atmosphere.

At about three billion years ago, the atmosphere of the Earth was virtually devoid of oxygen. At approximately 2.4 billion years ago, oxygen was discharged from the seas as a waste product of photosynthesis by cyanobacteria. The levels of the gas slowly raised, attaining about 1 percent around two billion years ago.

Approximately 800 million years ago, the levels of oxygen attained about 21 percent and started to breathe life into more composite species. The oxygen-rich ozone layer was also created, protecting the surface of the Earth from the harmful solar radiation.


8 0
3 years ago
Read 2 more answers
How does inorganic nitrogen from the atmosphere<br> (N2) get into living systems?
lawyer [7]

Answer:

When an organism excretes or dies, nitrogen is in the form of organic nitrogen in its tissues (e.g. amino acids, DNA). During the ammonification process, many fungi and prokaryotes then break the tissue down and release inorganic Nitrogen into the atmosphere as ammonia.

Explanation:

Plants use their roots for nitrogen compounds. When they consume the seeds, animals acquire certain chemicals. When plants and livestock die, or animals excrete waste, the organic nitrogen compounds return to the soil, where microorganisms known as decomposers break down their compounds.

6 0
3 years ago
The process of meiosis does all of the following except:
k0ka [10]

Answer:

The last one does not happen meiosis create four genetically different haploid cells

3 0
3 years ago
Prokaryotic cell lacks membrane -enclosed structure is called?
yKpoI14uk [10]

The prokaryotic cell lacks a nucleus and membrane bound organelles.

4 0
3 years ago
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