Which one of the following statements does not describe intersexual selection?
A. Physical traits such as large horns or other
elaborate weaponry allow the males to win
more fights with other males, hold larger
territories, and have access to more females.
B. Males compete for the attention of the
female with bright colors of advertisement
displays.
C. Females choose their mates.
D. The female peacock's preference for their
mates to have the showiest tail has promoted
a rather large investment by the male into tail
plumage.
A
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How does reduced river connectivity affect aquatic species?
a. It helps nonnative species establish in certain ecosystems. b. It prevents species from migrating freely. c. It reduces water temperature. d. It increases river volume. e. It assists species in long migrations.
What are the "work-bench" structures where cell proteins are assembled?
What will be an ideal response?
Which of the following statements regarding vectors is FALSE?
A) Vectors are usually autonomously replicating DNA molecules. B) A useful vector contains multiple restriction sites for insertion of DNA. C) Vectors are generally over 100,000 base pairs in size. D) Cloning vectors frequently contain sequences necessary for expression of inserted sequences. E) Cloning vectors include a "marker" to facilitate identification of cells containing them.
R codes for right-handed and r codes for left-handed. You check the handedness of 20 classmates and find that 15 are right-handed and 5 are left-handed. Which of the following do you know from this information?
a. p^2 b. 2pq c. q^2 d. p