Suppose that kin selection has evolved in a group of rodents. the average female typically has four offspring in her lifetime. if, instead of raising her own offspring, a female her sister raise her offspring (i. e. her nieces and nephews). how many nieces and nephews would she have to save in order for her to experience no net loss in fitness? show your work.

Dna has unique properties that allow it to accurately retain genetic information, even after multiple rounds of replication. one aspect of dna that allows it to accurately store genetic information is the base pairing from chargaff\'s first rule of the four nucleotide bases. if the c content of a dna molecule is 22%, what are the percentages of the remaining bases?

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.