All of the following are important properties of prokaryotes except
a. prokaryotes form the base of many food chains, especially those found within the open ocean.
b. prokaryotes are often decomposers and enable recycling of nutrients.
c. prokaryotes convert nitrogen-containing molecules into forms that can't be used by other organisms.
d. prokaryotes are used to make many products for humans.

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million

In pea plants, yellow seed color (y) is dominant and green seed color (y) is recessive. based on the punnett squares, what are the chances that the offspring in the second generation will have green seeds?

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.