What is a population's distribution of individuals among various age groups called? a. reproductive structure b. genetic structure c. age structure d. reproductive composition e. age composition?

Which of the following is an advantage of solar energy?

Which enzymes break down carbohydrates?

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different