The skeleton nicknamed Lucy is:

a. Homo habilis.
b. Australopithecus afarensis.
c. Australopithecus africanus.
d. Ardipithecus ramidus.
e. Homo erectus.


B

Biology & Microbiology

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A characteristic that an organism displays is called __________

A. a gene B. a chromosome C. DNA D. gene expression E. a trait

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The ability of a cell to move from the tissue to which it belongs to other parts of the body is known as

A) metastasis. B) contact inhibition. C) immune surveillance. D) angiogenesis.

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In the human cardiovascular system, what's the difference between the pulmonary circuit and the systemic circuit?

What will be an ideal response?

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In humans, eye color is determined by the amount of melanin in the iris of the eye and is probably controlled by several genes. The inheritance of eye color is an example of 

A. multiple alleles. B. pleiotropy. C. polygenic inheritance. D. gene imprinting.

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