1) Relatedness “r” A) means degree of shared genetic similarity among relatives over-and-above the baseline genetic similarity within a population B) ranges from 0 to 1 C) reflects the likelihood that two individuals would share supposedly “altruistic” alleles D) affects the likelihood of the expression of behaviors, such as alarm calling, between individuals E) all of the above

2) br-c > 0 A) is called Fisher’s Fundamental Theorum B) is called Hamilton’s rule C) describes the conditions under which a gene affecting social behavior will experience positive selection D) only applies in animals that live in social groups where each one knows the relatedness to each other E) B and C above, but not A or D

3) altruism A) does not really exist B) exists only in social species that consist of close genetic kin C) can be explained by shared genes and/or reciprocal interactions over time

4) haplodiploidy A) describes the genetic system in which males develop from unfertilized eggs and are haploid whereas females develop from fertilized eggs and are diploid B) makes females more closely related to their full sisters than they would be to their own offspring C) contributes to an understanding of the evolution of eusocial insects in the hymenoptera D) all of the above

5) eusociality A) involves the evolution of non-reproductive individuals B) depends upon costs, benefits, and relatedness of individuals C) is known in both vertebrates and invertebrates D) all of the above