A normal human cell has 46 chromosomes. which of the following best describes a human sperm cell?

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.

What materials must dams have to produce electricity, and what must occur?

Describe the impact of deforestation of both abiotic and biotic factors within the tropical rainforest.