According to scientific thought, when does one species of organisms become two species?

a.
when populations become separated from one another

b.
when one population becomes extinct

c.
when one population cannot interbreed with the other population

d.
when populations compete for the same resources

The term equestrian relates to which animal? bulls cows horses pigs

Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.

Wich level of organization includes all the other levels or organizations