Which class of organisms gather their energy directly from the sun?
a. autotrophs
b. carnivores
c. herbivores
d. detritivores

Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.

When ash and dust begin to settle on the ground, they eventually become compacted by

What is the starting point in replication called