Question

In 1822, an Arkansas farmer discovered a fossil when a hill collapsed on his property. The farmer sent the bones to the Philadelphia society to be reviewed by scientists where it was determined that the bones were from a whale. Through research, the scientists discovered whales have a vestigial structure that includes a pelvic girdle and hind limbs. Which evidence best supports the theory that organisms, such as whales, have common ancestry and have evolved? Select all that apply.Group of answer choicesOstriches and emus are flightless birds.Ancient cave paintings depict humans and bulls thousands of years ago.More than 96% of human DNA is identical to chimpanzee DNA.In the early stages of embryonic development, humans, rabbits, fish, and salamanders look very similar.Scientists discovered eight genetic variants in four regions of the human genome that influence skin color ranging from very light to very dark.

Answer 1

The best options are:

1. Ostriches and emus are flightless birds.

2. More than 96% of human DNA is identical to chimpanzee DNA.

3. In the early stages of embryonic development, humans, rabbits, fish, and salamanders look very similar.

The flightless birds such as ostriches and emus have vestigial structures.

Scientific studies can conclude that there is 96% of identical DNA found in humans and in chimpanzees.

If we observe the early embryonic stage of humans, rabbits, fish, and salamanders they look very similar to each other.