Nutrients and antibodies move across the placenta from mother to embryo or fetus, as do __________,

which can cause birth defects. Fill in the blank(s) with the appropriate word(s).


teratogens

Biology & Microbiology

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Which classification grouping includes the greatest number of species?

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Which characteristic do birds share with mammals?

A) A single ovary in females B) Mammary glands C) Hollow bones D) Sweat glands E) A four-chambered heart

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A bacterial cell that is deposited on the surface of an appropriate solid growth media will divide repeatedly until it forms a visible accumulation of bacterial growth. This is known as a bacterial

A. smear. B. biofilm. C. colony. D. community.

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A cooperative effect often occurs in multi-subunit proteins, leading to improved function of the subunits when bound to each other

A. true B. false

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