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Natasha2012 [34]
4 years ago
5

The lower chamber of the heart that pumps blood out of the heart is the _______. A. tricuspid valve B. superior vena cava C. lef

t ventricle D. atrium
Biology
1 answer:
ki77a [65]4 years ago
6 0
C. The left ventricle.
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The seed of a tree may sprout in soil that hasa collected in a cracked root. As the roots grow, they widen the crakcs, eventually breaking the rock into pieces. - mechanical weathering

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Which of the following is not a type of adaptation?
enyata [817]

Answer: The correct answer for the first question is- B) Mechanical.

Adaptation can be described as a process of change in an organism over time that facilitates its survival in the changing environmental conditions. It results due to mutation or genetic change in the individual that gives a benefit to the organism. It exhibits change in structure ( like succulent plants in desert), function, or behavior.

Mechanical is not a type of adaptation as it deals with movement of objects.

The correct answer for second question is- C) Variations.

Variation among organisms in a population results from change in the genetic material or their genetic sequences. Change at the genetic level is thus reflected in the phenotypes ( like different color of feathers in birds).

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part of an important cellular process involving a DNA strand is modeled below. What is the purpose of the cellular process ?
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What is smaller then an atom?
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