Which of the following is true of coral?
a.
it is located in deep sea regions.
b.
it supports few species.
c.
it is a large and complex organism.
d.
it is composed of thousands of individuals.

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

What kinds of molecules can pass through the cell membrane without any problem?

Which statements about a food chain are true? choose all answers that are correct. a.plants are the first living organisms in food chains on land. b. the plants in a food chain are called herbivores. c. all food chains on land begin with energy from the sun. d. carnivores in a food chain eat only plants.