The red pigment in erythrocytes is

, which transports oxygen.

hemoglobin

phycoerythrin

carotenoid

chlorophyll

How is the climax community determined?

What Type of skeleton do Cnidarians have? Endoskeleton, Exoskeleton, or None?

Cancer involves cells dividing rapidly and uncontrollably until a cancerous tumor develops. True False

Plants contain xylem and phloem tissue. what organ system in animals performs a similar function as the xylem and phloem of plants?

The number of individuals that die in a population in a certain time period is called what

Which statement correctly describes the process that occurs in the thylakoid? ATP is produced in the thylakoid during light-independent reactions. ATP is produced in the thylakoid during light-dependent reactions.

What body system peforms the function of getting rid of chemical waste

Natural selection is defined as A. the changes that occur in an organism over its lifespan. B. the changes in the characteristics within a population that lead to survival. C.

Is dna considered to be an organic molecule? Why or why not?

A large population of three-spined stickleback fish lives in an Alaskan lake. Two alleles segregate at a neutral locus. The allele frequency of the first allele is 0.78. What is the most likely frequency of that allele in the next generation?