Haplodiploidy's Impact on Parental Care and Social Behavior

Question 1 (2 points) WRONG Saved Listen Which of the following is the most defensible statement to make about the role of haplodiploidy in the evolution of sterile castes? Question 1 options: owing to the prevalence of multiple mating in social hymenoptera colonies, haplodiploidy has probably had a negligible effect on the evolution of sterile castes. haplodiploidy was not an absolute requirement for the evolution of sterile castes in social insects. sterile castes presumably would not have evolved in the hymenoptera in the absence of haplodiploidy. Question 2 (3 points) Saved Listen Which of the following, if any, is not an example of parental care, as that term was defined in class? Question 2 options: A killdeer bird feigning a broken wing to draw predators away from the nest. A frog depositing a trophic egg in phytotelms in which its tadpoles swim. A spider permitting its offspring to eat it alive. A giant water bug oxygenating the eggs on its back by moving fresh water over them. All of the above are legitimate examples of parental care. Question 3 (3 points) Saved Listen In a fully diploid species such as humans, what is the coefficient of relatedness (r) between two half-siblings that share a biological mother but have different biological fathers? Question 3 options:

0 0.25 0.5 0.75 Question 4 (4 points) 2/4 points Saved Listen In the interaction matrix, which two types of interactions appear to be absent, or nearly so, in non-human animals? Question 4 options: altruism cooperation exploitation spite Question 5 (3 points) Saved Listen Which of the following, if any, is not an example of parental investment, as that term was defined in class? Question 5 options: A killdeer bird feigning a broken wing to draw predators away from the nest. A frog depositing a trophic egg in phytotelms in which its tadpoles swim. A spider permitting its offspring to eat it alive. A giant water bug oxygenating the eggs on its back by moving fresh water over them. All of the above are legitimate examples of parental investment. Question 6 (3 points) WRONG Saved Listen

A tornado ravages a town. Neighbors assist victims with food and shelter. The victims consequently become more generous themselves in later interactions with people they have never met before. This is best described as an example of: Question 6 options: Kin selection. Direct generalized reciprocity. Indirect reciprocity (upstream), sometimes called generalized reciprocity.

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Parental Care and Social Behavior

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