Whales are marine mammals that share common ancestor with a group of land mammals that includes hippos. Which observation provides
evidence of the shared ancestry of whales and hippos?

Differences between compact bone and cartilage

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a.the offspring are more likely to have freckles. b.the offspring are more likely to have no freckles. c.the likelihood of the offspring having freckles and not having freckles is the same. d.the likelihood of the offspring having freckles and not having freckles cannot be determined.

There are fewer than 100 naturally occurring elements in the universe, but there are millions of different unified substances. explain how this can be true.