In which cycles are the nutrients found in a gas form?
a. atmospheric cycles
b. global cycles
c. water cycles
d. sedimentary cycles
e. plant-animal cycles
ANSWER: a
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Scorpion pincers are enlarged:A
chelicerae. B. maxillae. C. mandibles. D. pedipalps. E. legs.
The process of crossing over which begins in prophase I of meiosis usually results in which condition?
A. nondisjunction B. four diploid gametes C. increased genetic diversity in the gametes D. decreased genetic diversity in the gametes
A cross between two pea plants produces a population of 732 purple and 268 white plants. What is the genotype and phenotype of the parents that produced this population?
A. both parents heterozygous purple B. one parent homozygous purple, second parent homozygous white C. one parent heterozygous purple, second parent heterozygous white D. one parent heterozygous purple, second parent homozygous white E. one parent homozygous purple, second parent heterozygous white
Cellular slime molds can be distinguished from
plasmodial slime molds on the basis of a. reproductive structures. b. spore formation. c. number of nuclei per cell. d. slime trails. e. food requirements.