Many features distinguish modern humans from the nonhuman apes. however, only two of these features define hominins. why?
a. proper taxonomic groups are always defined by the traits that all members of the group share.
b. the evolution of hominins involved several different changes that happened at different times.
c. only two of these features evolved early enough to apply to all the hominins.
d. proper taxonomic groups are always defined by the t

How do water’s relative densities as a solid and a liquid differ from that of most other substances? water’s solid and liquid forms have different densities, while most other substances have solid and liquid forms with similar densities. water’s solid and liquid forms have similar densities, while most other substances have solid and liquid forms with different densities. water’s liquid form is less dense than its solid form, while the opposite is true of most other substances. water’s solid form is less dense than its liquid form, while the opposite is true of most other substances.