What is the significance of using identical and fraternal twins when studying the effect of the environment on heredity? ( soon)

Which part of cellular respiration must occur before any of the other steps can occur

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.

What would happen if the krill were removed from the food web