In this lab activity, you will investigate how predation, birthrates, and death rates influence the killer whale and seal populations within their marine ecosystem. The killer whales and seals have a predation relationship in the icy Arctic Ocean. Killer whales are predators and hunt their prey, the seals, for food. Due to their relationship, the killer whale and seal populations are interconnected; one population limits the growth of the other.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.