The current accepted theory of what drives evolution.
select one:
a. spontaneous generation
b. the vital force
c. physical fitness
d. natural selection
clear my choice

Which of the following choices is not an effective solution to the energy waste related to inefficient lighting? a. using low-pressure sodium lighting sources b. pointing lights on billboards and street signs upward c. placing light sources on time controls d. shielding light to direct it downward

Photosynthesis converts solar energy into what type of energy?

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.