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gayaneshka [121]
3 years ago
10

PLS HELP IVE BEEN ASKING FOR 2 DAYS OML NOBODY WILL HELP ;( ME GO CRY

Biology
2 answers:
ruslelena [56]3 years ago
8 0

Answer:

A.

Explanation:

Bc the rest are not reasonable

crimeas [40]3 years ago
8 0

Answer:

A. to maintain desirable traits

Explanation:

I'm positive that this is correct

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3 years ago
The slow accumulation of genetic changes to an influenza virus over time is referred to as _______.
Ivenika [448]

Answer:

<u>Antigenic drift</u> refers to the slow accumulation of genetic changes to an influenza virus over time.

Explanation:

Antigenic drift is defined as the mechanism by which viruses undergo variation. This mechanism involves the slow accumulation of mutations in the viral genes, that are responsible for coding the antibody binding sites. This leads to the formation of a new strain of virus, which can't be inhibited by the old antibodies. Due to this, the virus can easily spread the disease.

The antigenic drift occurs in the influenza A virus and also the influenza B viruses.

Therefore, <u>Antigenic drift refers to the slow accumulation of genetic changes to an influenza virus over time.</u>          

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3 years ago
Which statement describes the effects of farming practices such as the overuse of pesticides?
Mazyrski [523]

Answer: fewer areas have fertile soil reducing crop production

Explanation:

I j got it right

5 0
3 years ago
____________________ laundry trays do not provide a smooth, and sanitary surface, which is no longer permitted.
Alik [6]
The answer is concrete laundry trays.
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5 0
3 years ago
One important event of prophase is that the chromosomes ___ and become _____
stiks02 [169]
The answers are: condense; visible

Explanation:

In Prophase I, the chromosomes condense and become visible.
7 0
2 years ago
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