Answer correctly,
which choice is a biotic factor of an ecosystem?

a) ants

b) soil

c) sun

d) air

Which of the following claims does the author support the least

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.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell