If you use a solar-powered calculator to calculate the half life of an isotope, you are using what energy source? *
1.Passive solar heat
2.A small generator
3.Photovoltaic cells

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein

Aperson is outside exercising. body temperature begins to rise, and the person starts to sweat. their body temperature then returns to normal, and the body stops sweating. a positive b negative c allosteric d homeopathic