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sesenic [268]
2 years ago
12

1)Plants and animals need a sugar called glucose in order to make ————— energy in a process called————.

Biology
1 answer:
gladu [14]2 years ago
8 0

Answer:

ATP, Cellular resperation

Explanation:

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Why are platypus,brown bear,lion,and house cat thought to be related to each other?
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The platypus , brown bear , lion and house cat are related cause they are all mammals , but the lion and house are the same family .. hope this helps :)
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3 years ago
Which is a primary function that kidneys perform for the excretory system?
antiseptic1488 [7]
I believe it’s A cause the kidneys do remove waste products and excess fluid from the body
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2 years ago
Purpose of the cell membrane.
Semmy [17]

Answer:

The primary function of the plasma membrane is to protect the cell from its surroundings. Composed of a phospholipid bilayer with embedded proteins, the plasma membrane is selectively permeable to ions and organic molecules and regulates the movement of substances in and out of cells.

Explanation: can u give me 5 stars?

6 0
3 years ago
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In humans, methylation of chromosomal DNA is a signal that often leads to
Ulleksa [173]

Answer:

The correct answer will be option-formation of heterochromatin

Explanation:

Methylation of DNA is the epigenetic mechanism which controls the expression of a gene by adding a methyl group to the cytosine bases in eukaryotic DNA.

The methylation of DNA converts the cytosine residues to the  5-methylcytosine catalysed by DNA methyltransferase enzyme. This results in the silencing of the gene and transcription get switched off.

Studies have shown that DNA methylation is involved in the formation and maintenance of the heterochromatin structure which is the condensed form of the chromatin in which transcription is switched off.

Thus, the formation of heterochromatin is the correct answer.

7 0
3 years ago
When enzymes are elongating (building) a newly synthesized dna strand in pcr, new nucleotides are being added to the ____ of the
Tamiku [17]
The correct answer is c. 3 ' hydroxyl of deoxyribose.  
<span>
During the DNA synthesis via PCR, polymerization occurs in 5’-3’ direction. This means that enzyme DNA polymerase which synthesizes a new DNA strand is complementary to the DNA template strand (3’-<span>5’ direction). 5’ phosphate group of the free nucleotides which are added is attached to the 3'-hydroxyl group at the end of the elongating DNA strand.</span></span>
3 0
3 years ago
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