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timama [110]
2 years ago
8

What one of the following items is a producer of pollution?

Biology
2 answers:
Setler [38]2 years ago
4 0
Factories

factories produce chemicals and pollution when producing machines
krok68 [10]2 years ago
3 0

Answer:

C. factories

Explanation:

Factories release several gases and waste thata re toxic to the environment and considered pollutants.

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Which mechanism(s) are responsible for introducing new alleles into a population's gene pool?
Elena-2011 [213]

Answer: The right answer is -

A) Gene flow

Explanation:

Gene flow is a process of gene migration or the transfer of gene variant (also called allele, which is responsible for genetic variation in population) from one population to another population.

As a consequence of gene migration, new alleles are introduced or added in the already existing population, thereby increasing genetic diversity.

Thus, option A) is the right answer.

8 0
3 years ago
Which group is an ecosystem performs photosynthesis
Lynna [10]

Answer:

autotrophs are the ones who perform photosynthesis

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Neurons may be classified according to several characteristics. Which of the following is correct? A. Group A fibers are mostly
den301095 [7]

Answer:

Option (B).

Explanation:

Neurons or nerve cell are the basic structural and functional unit of the nervous system. Fibers are the thread like long projection of the nerve cells.

Neurons are classified into three fibers- Group A fibers, B fibers and C fibers. The group C fibers cannot capable of doing the saltatory conduction of the nerve impulse because they are unmyelinated.

Thus, the correct answer is option (B).

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3 years ago
Two parents have the genotype dd and DD for dimples. The presence of dimples is dominant. What are the chances that their child
I am Lyosha [343]
Using the Punnet square, you find it is a 100% chance
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Enters the left atrium...this is the oxygenated blood from the lungs (pulmonary)
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