The spores of a fern are

(a) produced by mitosis within the sporangium.
(b) diploid cells.
(c) the first cells of the gametophyte generation.
(d) both a and b.


(c) the first cells of the gametophyte generation.

Biology & Microbiology

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Work by Charles Darwin and Francis Darwin was instrumental in the discovery of ____

a. auxins b. brassinosteroids c. jasmonates d. cytokinins e. gibberellins

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A blood test cannot determine if a person is a carrier of Tay-Sachs disease because the mutant allele is undetectable

a. True b. False

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Which plants do not have roots?

A) Bryophytes B) Ferns C) Angiosperms D) Gymnosperms

Biology & Microbiology

Compare the primary and secondary antibody titre responses during immunization by drawing a graph of "Plasma Antibody Concentration" vs. "Time." Indicate on the graph the time of first and second exposure. The y-axis may be quantified as low to high and need not report specific number quantities.

What will be an ideal response?

Biology & Microbiology