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Oksana_A [137]
3 years ago
14

Why can mRNA leave the nucleus, but

Biology
2 answers:
Fittoniya [83]3 years ago
5 0

I would say B.(RNA is singled stranded, DNA is double stranded, so

RNA is smaller than DNA.)

RNA is a single strand and can leave the nucleus easily but the DNA is double strands that are twisted together and are big and cannot leave the cell

Trava [24]3 years ago
4 0

Answer:

B

Explanation:

Your DNA is stored in a double helix formation. Which means it has two long strands and would be too long to leave the nucleus. C and A are incorrect. DNA is double stranded, so we can eliminate A. There are NO special openings in the nucleus. Only the cell membrane. C is eliminated.

Option D is incorrect because DNA is transcribed into the cell membrane, there is no way for it to leave. RNA is a single strand.

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What is homeostasis? How do cells use both diffusion and osmosis to help maintain homeostasis?
arlik [135]

Answer:

Osmosis is the process cells use to move water molecules in and out of the cell through the cell membrane. When cells are put in different environments they will try to maintain an equilibrium with the water concentration outside the cell. Through osmosis the cell will lose or gain water molecules to become equal to the concentration in their environment.

Explanation:

8 0
3 years ago
Bearing fruit benefits plants because
Pavlova-9 [17]

Answer:

There are many benefits of bearing fruits. Please read the explanation section.

Explanation:

A fruit is the part of flowering plants. Fruit contains the seeds of the plant. These seeds help the plants to reproduce its next generation. Some fruits are fleshy like berries; some are hard like nuts. The fruit helps to protect the seeds.

Along with this, the fruit helps the seeds to be spread out. Many fruits are attractive because of their color and aroma. They attract small animals like birds, squirrels. They eat those fruits. After eating, the animals move from one place to another. With them, the seeds move too.  When those animals poop, the seeds are coming out with their poop. Then the seed can grow at that place.

4 0
3 years ago
Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped.
Delicious77 [7]

Answer:

The correct answer is - as energy lost at every trophic level.

Explanation:

In any ecological ecosystem the energy pyramids always upright unlike other pyramids such as biomass showing the number of organisms, that can be diamond shape, inverted or upright.

The main reason behind this is due to the fact that it is only a pyramid in the ecosystem that always unidirectional in the food chain which is always some energy lost with an increase in the trophic level in the food chain. This loss of energy always gets back to the atmosphere in each step of the food chain.

3 0
3 years ago
I WILL MAKE YOU BRAINLIEST JUST PLEASE HELP
r-ruslan [8.4K]

Answer:

The first one

Explanation:

It actually graphs the data rather than just having the data and you can see visuals.

4 0
3 years ago
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Your aunt grows sprouts hydroponically. from where do her plants get nutrients?
larisa [96]
Hydroponics way of growing, is way of farming, in which plants are grown in nutrient rich water. So, in Hydroponic growing of sprouts, sprouts get their nutrients from the nutrients supply like liquid fertilizers which are mixed with the water. It is one of the advantage of hydroponic means of growing because, unlike in soil system, the plants root does not have to work hard to get nutrient from underground. The easy availability of nutrients and other condition like water, pH level etc makes plants grow faster are fuller.

Also, advancement of technology have made it possible to prepare built-in hybrid hydroponic system which have multiple ways of delivering nutrient to specific plants. 
8 0
3 years ago
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