Which characteristic best describes vertebrates?

a. vertebral column
b. blood containing hemoglobin
c. four-chambered heart
d. lungs
e. live birth


a

Biology & Microbiology

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In seed plants, __________ allow reproduction

without standing water. Fill in the blank(s) with the appropriate word(s).

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Embryonic stem cells are harvested from the inner cell mass of an early stage embryo called a(n)

____________________. Fill in the blank(s) with the appropriate word(s).

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At which stage of meiosis are sister chromatids separated from each other?

a) anaphase II b) prophase I c) prophase II d) anaphase I

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Membrane anchors set up the geography of a cell.

a. true b. false

Biology & Microbiology