3. explain peter and rosemary grants study of finches. how did this support darwin's hypothesis.

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

How does a gymnosperm prevent itself from pollinating the same tree