There are a few ways to increase the rate of a reactionthe amount of a substance in a given volume is increased this is alterng the .
A) temperature
B) concentration
C) surface area
D) pressure

How is an environment able to support different varieties of organisms?

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because