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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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
Biology & Microbiology
Which classification grouping includes the greatest number of species?
A) Domain B) Order C) Phylum D) Kingdom
Biology & Microbiology
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
Biology & Microbiology
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.
Biology & Microbiology