Chromosomes move toward the poles during
A. anaphase II.
B. metaphase II.
C. prophase II.
D. telophase II.
A. anaphase II.
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The proper order of predator-prey relationships is
a. herbivore-producer-carnivore. b. carnivore-producer-herbivore. c. herbivore-carnivore-producer. d. producer-herbivore-carnivore. e. carnivore-herbivore-producer.
Hormones are distributed throughout the body
by
a. the urinary system. b. the lymphatic system. c. the nervous system. d. the circulatory system. e. more than one of these systems
Different, or alternative, forms of the same gene are called
a. genetomorphs. b. alleles. c. mutants. d. chromatids. e. homologous.
What did experiments with the brown alga Fucus help to determine?
A. The thallus anchors the alga to the surface on which it lives. B. A cell wall is required for the zygote to "remember" where a rhizoid should form. C. Magnesium gradients are important for cell wall formation. D. Light and gravity do not affect rhizoid orientation. E. The cytoplasm is evenly distributed throughout the algal zygote.