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Karo-lina-s [1.5K]
4 years ago
14

Which structure allows gases and nutrients in and out of the cell

Biology
1 answer:
andriy [413]4 years ago
4 0

Answer:

Cell membrane

Explanation:

Cell membrane is an important part in cell which performs various vital functions. It is not only a simple boundary that surrounds the protoplast rather it is a semi permeable membrane structurally made of proteins and lipid bilayer and regulates the transport of different materials across it.

It regulates the following transports -

  • Disposal of wastes
  • Export and import of nutrients
  • Export and import of various ions
  • Export and import of gases
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Precipitation and evaporation are important components of the
uysha [10]
Hey Vanelsa. Let me help you on this one.

In this question, we will need to fill a certain word in the blank at the end of this statement. Let's take a closer look at this sentence in order for us to get a correct answer.

Both precipitation and evaporation deal with certain actions that take place within water cycle - cycle in which water circulates around the liquid, gas, and sometimes, even solid form. 

In the water cycle, water turns into gas because of heat - this process is called evaporation. This gas goes up, and then, it's carried with the clouds. Once the gas form is cold enough, it will turn into water, and fall from the sky in form of the rain - this process is called precipitation.

I will be attaching image of the water cycle for you to better understand it.

Answer: Precipitation and evaporation are important components of the water cycle.


4 0
4 years ago
Which of the following was originally used to measure bone density?
Alexus [3.1K]

X-rays used to measure bone density.

<u>Explanation</u>:      

The bones density test measured by the X-rays, it measures the content of calcium and other bone minerals that are packed into the segment of bone. Most commonly used parts of bone for testing are spine, hip, occasionally and the forearm. It is generally done to know the chances of osteoporosis. More the bone minerals, more will be density.  More density means the higher bone strength. Before the test, a person should avoid having calcium supplement.

3 0
3 years ago
Which structure produces cells that have the potential to become gametes?
Temka [501]

The question is incomplete and the complete question is attached.

Answer:

Testes

Explanation:

In the given question, the male reproductive structure has been provided and in this male reproductive structure, only "Testes " which occurs in the pairs are known to form the male gametes.

The male gametes called sperms are formed from the spermatocytes which by the process of meiosis produces four spermatozoa which later mature into the spermatids and sperms.

Thus, Testes is correct.

5 0
3 years ago
Students planted three bean seeds after several days, they observed that the seeds' roots were growing downward into the soil wh
irina [24]
The answer is A. And if you are from connections Academy 7th grade science it's
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4 0
4 years ago
Read 2 more answers
Prokaryotic cells have a nucleus
natta225 [31]
No they do not have defined nucleus
4 0
3 years ago
Read 2 more answers
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