A hypothesis is a proposed explanation for an observation, which can then be tested with experimentation or other types of studies. a. True
b. False

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.

How does secondary succession differ from primary succession?

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient