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raketka [301]
3 years ago
13

When in U.S, history did pollution start to become an issue? Explain why pollution was not an issue prior to this time period.

Biology
1 answer:
sasho [114]3 years ago
8 0

Answer:

pollution began to be a problem in 1800's.

Explanation:

more people meant more rubbish. industry also added to this

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A b c d ?? pls help me
TEA [102]

Answer:

cell membrance

Explanation:

because that is the defect mostly to be located

7 0
3 years ago
How does respiration in plants and animals differ
Katena32 [7]
Plants do not breathe, they only respire. No such respiratory organ os present in plants. The carbon dioxide produced in animals during respiration is released to the atmosphere, whereas the carbondioxide produced during plant respiration may be used by the plant for carrying out photosynthesis.
6 0
3 years ago
The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well
Harrizon [31]

The question is incomplete. The part of the question after this is: Assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations.

Answer:

PFK: cytoplasm

insulin: ER--> Golgi--> outside cell

Explanation:

The proteins which are made and have to function in the same cell like Phosphofructokinase (PFK) do not have to undergo the modification processes which are required fro transporting a protein. Such kind of proteins are translated in the free cytoplasmic ribosomes and released into the cytoplasm where they start to function.

The proteins like insulin need to be traveled to different cells where they have to function. Such kind of proteins are formed in the ribosomes which have rough Endoplasmic Reticulum attached to them. From here, they travel to the Golgi complex where they are modified and packaged. From the Golgi-complex, these proteins are moved out of the cell.

5 0
3 years ago
What is the same between homozygous and heterozygous
tino4ka555 [31]
Homozygous and Heterozygous are the same some ways, one way is that they both determine what features you will have in life. Another way that they are the same is because they both deal DNA and how you are made.
7 0
3 years ago
WHY DOES IT CAUSE PAIN WHEN THE HANDS IS CONSTANYLY RAISED ?
sammy [17]

Answer:

A strain is most likely the cause of pain while stretching your right arm, which occurs from lifting an object inappropriately, overuse of the muscles and tendons, or excessive pulling on the muscles. (:

Explanation:

8 0
2 years ago
Read 2 more answers
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