When a plant blocks fertilization after recognizing pollen as genetically related, this is called

A. self-incompatibility.
B. self-fertilization.
C. self-pollination.
D. outcrossing.


Answer: A

Biology & Microbiology

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Which of the following statements about mammalian cleavage is false?

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The Taenia multiceps tapeworm is 5 to 6 cm long and consists of 200 to 250 segments. It has four suckers in its scolex and a proboscis with 22 to 32 hooks arranged in two rows. This organ-ism causes which condition?

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