Why do cells continue to divide in adult organisms?

Biology

1 answer:

Gekata [30.6K]3 years ago

5 0

Answer:

In addition some cells divide continuously throughout life to replace cells that have a high rate of turnover in adult animals Cell proliferation is thus carefully balanced with cell death to maintain a constant number of cells in adult tissues and organs

Explanation:

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Water _____ sunlight; thus photosynthesis in lakes and oceans does not occur below 100 meters.

Andre45 [30]

Blocks, Since water blocks sunlight, photosynthesis can't occur in deep waters, because sunlight is required for photosynthesis.

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3 years ago

What is the groundwater cycle and what happens at each point in the process.

anzhelika [568]

The groundwater cycle (aka water cycle) is the process in which water is cycled from the sky to the ground and back.

First, it moisture in the atmosphere condenses and falls in the form of precipitation (snow, rain, hail). Once it reaches a surface, it is either absorbed by the ground or runs off. This is where the road splits briefly.

Ultimately, the runoff will reach a large body of water and the absorbed water infiltrates the groundwater. The runoff water, now grouped into a larger body, will start to evaporate and reach the atmosphere, completing its cycle. The groundwater on the other hand has one more step; after it reaches the groundwater, plants and trees will use it in the process of photosynthesis. After this, transpiration occurs, and the water in the plant's roots reaches leaves, where it turns to vapor, and goes back into the atmosphere, completing the cycle.

This cycle constantly goes on, and is why there is so much water and precipitation on Earth. For further reference, check the illustration below!

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3 years ago

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Why do mitochondria and chloroplasts have relatively small genomes?

Komok [63]

Answer:

B) Over time, much of their nucleic acid has migrated to the host cell nucleus

Explanation:

The origin of chloroplasts and mitochondria is explained via endosymbiosis theory: they originated as prokarytoic symbionts. The host cell acquired genetic information from them and “took it up” by lateral gene transfer. Those genes (now located in the eukaryotic cell nucleus-nuclear genome) encode the great majority of chloroplast and mitochondrial proteins, as well as many proteins of the nucleus and cytosol.

Yet ,chloroplasts and mitochondria retained some of the genes in their genomes.

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3 years ago

Name some organisms that are producers

sweet [91]

First of all, we must understand what we are looking for. We know that producers are basically organisms which make their own food. Therefor some examples are:

1) Algae (creates its own food using energy from the sun)

2) Plants (creates its own food using energy from the sun)

3) Phytoplankton

I hope this helps!

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2 years ago

Gene splicing is used to produce what

kotykmax [81]

to allow single-celled organisms to produce useful products

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3 years ago