In some jacana species, males take care of the eggs and young, and females compete among themselves for territories that contain one to several males. Female jacanas are significantly larger than males
Which of these statements would you predict to be true of this bird species? 1. Male jacana fitness is primarily limited by ability to take care of eggs and raise young. 2. Female jacana fitness is limited by the number of males in her territory with which a female mates. 3. Variation in reproductive success should be greater in male jacanas than in females. 4. Variation in reproductive success should be greater in female jacanas than in males. 5. Males and females have equal variation in reproductive success. A) 1 and 3
B) 2 and 4
C) 1, 2, and 4
D) 5
C
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When behavioral biologists look at the ultimate evolutionary benefit to animal communication, they
are primarily focusing on the effects of the communication on the individual's ability to ____.
a. maintain a favorable position in the dominance hierarchy b. produce surviving offspring c. intimidate other animals d. form alliances with other animals e. find food
A Barr body exists for the purpose of _____
a. gene dosage compensation b. insuring fertilization c. blocking the activity of the Y chromosome d. turning on the SRY gene e. activating master genes
Microvilli are indicated by
a. A. b. B. c. C. d. D. e. E.
How do paracrine signals work?
What will be an ideal response?