According to ____, environmental pressures caused changes in body parts, which were directed by ____ and passed
onto offspring.
a. Lyell; genetics
b. Lamarck; fluida
c. Darwin; genetics
d. Cuvier; lineages
e. Aristotle; fluida
ANSWER: b
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Alternation of generations occurs in some protists. Which of the following represents the correct sequence of events for this mode of reproduction?
A) gametophyte ? gamete ? fusion ?? sporophyte ? spore ? gametophyte B) sporophyte ? spore fusion ? gametophyte ? gamete ? sporophyte C) gametophyte ? fusion ? sporophyte ? spore ? gamete ? gametophyte D) gamete ? fusion ? gametophyte ?? spore ? sporophyte ? gamete
Fungi are ecologically important for all of the following reasons, except
A. They break down organic materials and return them to the ecosystem. B. All can exist in symbiotic relationships. C. Some can ferment and produce bread, beer, wine, cheese, and soy sauce. D. Some cause diseases in plants and animals. E. They can break down lignin.
Australia and Eurasia each have a mouse-like mammal, one a marsupial, the other a placental. This is
an example of
a. long-distance migration. b. homology. c. adaptive radiation. d. convergent evolution. e. coincidence.
A dihybrid cross produces 30 recombinant offspring out of a total of 1,000 offspring. What is the recombination frequency of the two gene pairs?
A) 6% B) 3% C) 30% D) 1.5%