Which example best illustrates homoplasy?

a. shark fins and dog tails
b. whale fins and bat wings
c. bird wings and insect wings
d. cactus spine and pea tendril
e. elongated snout of aardvarks and pangolins


c

Biology & Microbiology

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Binary fission is:

A. cell division by meiosis B. cell division by mitosis C. cell division by simple splitting D. fluorescent in situ hybridization (FISH) E. exchange of genes between two cells

Biology & Microbiology

Gibberellins have their most dramatic effects

a. on leaves. b. in promoting abscission. c. on fruit ripening. d. on stem lengthening. e. on flowers.

Biology & Microbiology

Extensive epiphytes are found in the tropical dry forests

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

What triggers new outbreaks of influenza after long periods of apparent immunity to the virus?

a. loss of all resistant individuals from the population b. mutation of the influenza virus genome by UV exposure, which results in more virulent strains c. antigenic shifts in the influenza genome, which generate hybrid viruses with surface proteins unrecognized by the immune system d. none of the above

Biology & Microbiology