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guajiro [1.7K]
3 years ago
11

How did the moon fom?

Biology
1 answer:
Assoli18 [71]3 years ago
3 0

Answer:

It was formed around 4.5 billion years ago when something the size of mars smashed into the Earth, which made matter fly into orbit.

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How will gene therapy be used in the future?<br><br> Please help me <br> Thank you
expeople1 [14]

Answer:

I think to create new medical procedures

Explanation:

4 0
1 year ago
Why does water move through a membrane?
AnnZ [28]

Answer:

The cells need water to maintain their metabolic functions, the way water enters through cells membranes is by osmosis.

Explanation:

The cell membrane is a lipidic bilayer composed of phospholipids and embedded proteins. Phospholipids have the characteristic of being amphiphilic which means that possess hydrophilic and lipophilic characteristics. The most common way is by osmosis, that is a mechanism that moves water from high concentration to less concentration of water.  In the cell membrane, there are is channels of proteins called aquaporins that facilitate the pass of water through the membrane. Also, as water is a very small molecule without charge, this characteristic allows passing a limit amount of water molecules through the hydrophilic characteristic of membranes.

7 0
3 years ago
As opposed to external fertilization, internal fertilization ensures that
Dominik [7]
<span>c. only the fittest of sperm and egg combinations will survive.

</span>As opposed to external fertilization, internal fertilization ensures that

NOT:
a. the number of sperm and eggs produced will be equal.
b. all of the sperm will fertilize eggs.
d. sperm will be protected until they can unite with the eggs.
<span>e. sperm and egg will be released simultaneously.</span>
6 0
3 years ago
Geography the process in which nutrients are dissolved in water and percolate downward below the root zone of crops is called:
Karo-lina-s [1.5K]
Nutrient Leaching

Leaching is the process where dissolved nutrients in the soil profile moves downward with percolating water. It is the loss of water-soluble plant nutrients from the soil. The nutrients that seep through the rooting zone may be recycled if roots grow deeper.


6 0
3 years ago
Which of the following is true of cells in batch culture? Cells never reach exponential growth rates. Metabolic wastes do not ac
Nataly [62]

Answer:

Option (3).

Explanation:

Batch culture may be defined as a type of culture which are refereed as stack and operated as influx of the reactant up to the maximum level. This technique is generally used to grow the micro organisms.

The cell mass do not decrease or increases as the cell divides in the batch culture. The new batch are added during the culturing process. The cell mass remains constant in batch culture.

Thus, the correct answer is option (3).

7 0
3 years ago
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