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mariarad [96]
3 years ago
6

2. The immune systems is built of millions of cells called:

Biology
2 answers:
Anni [7]3 years ago
4 0

Answer:

c. Leukocytes (white blood cells)

Explanation:

When they do, so-called daughter cells are generated that have receptors identical to those found on the original lymphocytes. The result is a family of lymphocytes, called a lymphocyte clone.

kkurt [141]3 years ago
4 0
C is the correct answer
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In some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." Male ligers ar
Pachacha [2.7K]

Answer:

a prezygotic barrier

Explanation:

Both wild tigers and lions are said to be reproductively isolated.

Reproductive isolation is defined as the existence of barrier between organisms of different species such that they cannot reproduce.

The mechanisms of reproductive isolation varies. While some act to prevent the formation of zygotes (in case of mating) between organisms of different species, some ensures that the resulting zygotes are invalid.

Reproductive isolation mechanisms that act to prevent fertilization and formation of zygotes are referred to as prezygotic mechanisms while those that ensure that invalid zygotes result (in case of successful fertilization) are referred to post zygotic mechanisms.

<em>The natural differences in the ranges of wild tigers and lions ensure that both animals do not mate with each other, let alone results in zygote. This is a form of pre-zygotic reproductive isolation mechanism.</em>

7 0
3 years ago
An environmental scientist might study the effect of soil pollution on plant growth.
Elena L [17]
  • <u><em>True.</em></u>

As...Environmental scientist studies the interaction of the living components of the ecosystem with the non living components.

The contamination in the soil will affect the growth of plants, this will also be studied by the environmental scientist.

The Growth of the plant depend on the quality of soil in which it is grown so it will also be a concern for the environmental scientist.

6 0
3 years ago
Which of the following water samples would be considered acidic?
Schach [20]
7 is neutral but the ones that would be considered acidic is B
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maria [59]

Answer:

idk do you know i dont

Explanation:

4 0
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C) a system is a set of parts that function together as a whole

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