Which of these behaviors is NOT associated with androgens?
A) body-slamming elephant seals
B) mating songs in frogs
C) territorial battles in fish
D) maturation of ovaries in bears
D
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Progymnosperms are a group of extinct seedless vascular plants
a. True b. False
Which of the following plants are among those
that contributed to the formation of coal?
a. horsetails b. peat mosses c. conifers d. angiosperm trees e. more than one of these
What occurs after a pollen tube penetrates an ovule?
a. Other pollen tubes are attracted to that ovule. b. That pollen tube continues on to another ovule. c. Other pollen tubes are prevented from gaining access to that ovule. d. Other pollen tubes can penetrate that ovule more easily.
Which of the following is an example of sexually antagonistic selection?
a. Male fights over females raise the risk of female injury. b. Male red deer with high lifetime reproductive fitness have daughters with low lifetime reproductive fitness. c. Female birds engage in extra-pair copulations with males other than the one providing the main brood care. d. Red coloration in sticklebacks is an honest signal of male parasite re-sistance. e. A, B, and C.