Formal hypothesis of smiling and homework

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

Describe two recent or ongoing space missions.

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods. c. it shows that these organisms share the same habitat. d. it provides evidence that these organisms suffered a genetic mutation.