Scientists believe that land plants, such as the examples seen here, evolved from single-celled green algae. single-celled algae first evolved a colonial form, as noted in volvox, and eventually developed organs for reproduction as well as food and water conduction. one key process in this evolution was
a) mitosis.
b) cell replication.
c) genetic continuity.
d) cell differentiation.

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.