Unlike sexual reproduction, vegetative reproduction
a. requires flowers.
b. produces offspring by mitosis.
c. is dependent on fertilization.
d. needs gametes.

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?

Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?