3 years ago

Select each correct answer. More than one answer may be correct.

1 answer:

4 0

Two diverse species<span> naturally breed an offspring, and selective pressures favor </span>new<span> traits in a given environment, (they evolve). hope this helps</span>

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The science of heredity

alexandr402 [8]

Answer:

Genetics

Explanation:

Heredity refers to one's genes

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3 years ago

What are two types of symbiosis?

olga nikolaevna [1]

Answer:

mutualism and parasitism

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mutualism: crocodiles and birds

parasitism: mosquitoes and humans

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Early land plant evolution occurred in moist lowland habitats; 400 million years ago they moved to the interiors of continents.

fredd [130]

Answer:

C. development of vascular tissue for bulk flow

Explanation:

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Which of the following is a characteristic of the second stage with a demographic transition

Montano1993 [528]

My Answer: The death rate begins to fall, but birth rates remain high for a time.
Why?: Many of our countries are in Stage 2, that is why the government is concerned about our overpopulation.
Hope I helped! :D

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3 years ago

Why did most mosquitoes perish when DDT was sprayed the first time?

WINSTONCH [101]

Answer:

Due to no resistance.

Explanation:

Most mosquitoes perish when DDT chemical was sprayed the first time because these mosquitoes are vulnerable to the DDT chemical and there is no resistance present in their body against this chemical. DDT chemical is an insecticide which is used against insects or pests that causes damage to human, organisms and crops. DDT was first synthesized in 1874 by the Austrian chemist named Othmar Zeidler.

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3 years ago