What would happen in an ecosystem without primary consumers​

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

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.

Acquired mutations can result from radiation pollution toxins inheritence select all that apply