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ss7ja [257]
3 years ago
15

Why does cell division occur

Biology
2 answers:
bezimeni [28]3 years ago
6 0

Answer:

Cell division, also called mitosis, occurs in all living things. As living things grow, some cells die or become damaged and need replacements.

Rasek [7]3 years ago
6 0

Cell division, also called mitosis, occurs in all living things. As living things grow, some cells die or become damaged and need replacements. ... In multicellular organisms, cell division allows individuals to grow and change by expanding the number of total cells.

Hope this helps :)

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, what location on Earth is receiving the most hours of sunlight? Why?
Phantasy [73]

Answer:

the equator gets the most sunlight

Explanation:

thia is because of the way that the earth is tilted on its axis.

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6 0
3 years ago
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The leaves at the top of a tree’s canopy are exposed to direct sunlight during the day, and their phytochromes will occur in a h
olya-2409 [2.1K]

Answer:

Explanation:

1)Pfr/Pr

2) Pr

3)far-red

Explanation:

The leaves at the top of a tree’s canopy are exposed to direct sunlight during the day, and their phytochromes will occur in a high *Pfr/Pr* ratio. Meanwhile, the leaves of the same tree at the bottom of the canopy are highly shaded during the day and will likely have a higher proportion of the * ( PHYTOCHROME )Pr *;form of phytochrome present due to exposure to a higher proportion of *FAR RED * light.

Plants make use of the phytochrome system to it's adjust growth based on the seasons. Through phytochrome plants is able to respond to the timing and duration of dark and light periods. At dawn, all the phytochrome molecules present in the leaved are converted to the active Pfr form until sunset this is because the sun is unfiltered, and unfiltered sunlight has high percentage of red light, but lower far-red light, with the help of phytochrome system , the plants is able to compare the length of dark periods over several days.

7 0
3 years ago
A bacterium is infected with an experimentally constructed bacteriophage
dem82 [27]

The complete question is:

a bacterium is infected with an experimentally constructed bacteriophage composed of the T2 phage protein coat and T4 phage DNA. The new phages produced would have

A) T2 protein and T4 DNA

B) T2 protein and T2 DNA

C) a mixture of DNA and proteins of both phages.

D) T4 protein and T4 DNA

E) T4 protein and T2 DNA

A bacterium infected with an experimentally constructed bacteriophage will give new phages with the virus' DNA and the type of proteins that this DNA encodes.

A bacteriophage is a virus that attaches itself to a bacteria and uses it to replicate itself. Viruses have two main parts, a protein coat and their DNA inside it.

  • The experimentally constructed bacteriophage has one type of protein that makes the coat, the T2. This type of protein will allow the virus to attach and infect the bacteria.
  • Once the virus attaches itself to the bacteria, it will introduce its DNA, T4 type, and use the bacteria elements to replicate it and create new phages.
  • As a result, the new phages will have T4 DNA, and the proteins that the virus synthesizes will be the same type as the DNA.

In conclusion, The new phages produced would have D) T4 protein and T4 DNA.

Learn more at:

brainly.com/question/3901247

8 0
2 years ago
​an associated characteristic linked to anorexia nervosa is ____.
mr_godi [17]
An associated characteristic linked to anorexia nervosa is purging after food consumption where an individual forces out the food that he or she consumed

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the primary driving force that stabilizes lipid bilayers is the formation of hydrophobic bonds between fatty acid chains in phos
zhannawk [14.2K]

The primary driving force that stabilizes lipid bilayers is the formation of hydrophobic bonds between fatty acid chains in phospholipids and protein.

The cell membrane is made up of phospolipid bilayer with proteins embedded in between

Lipid bilayer is the structure present in the biological membrane. It consist of two layers of lipids with hydrophilic end facing each other and hydrophobic end facing the outer side.

the inner layer has both the hydrophobic end of the lipid molecules facing each other and bonded by hydrophobic bond van der waals forces.

The outer molecules are bonded with the protein molecules through hydrophilic bonds called hydrogen bonds.

To learn more about lipid bilayers here

brainly.com/question/15362459

#SPJ4

5 0
2 years ago
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