What are the three types of interactions between organisms in an ecosystem? a. competition, mutualism, and predation b. territoriality, predation, and symbiosis c. competition, predation, and symbiosis d. commensalism, parasitism, and mutualism

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

How does the nervous system affect the excretory system?

Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring