What is considered to be the primary method of succession in the marine intertidal zone?
A. Mutualism
B. Facilitation
C. Equilibrium
D. Tolerance
E. Inhibition
Answer: E
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Select the statements that provide direct biogeographical evidence for evolutionary theory. Check all that apply.
_____ Unrelated organisms from similar habitats exhibit similar characters. _____ Terrestrial mammals are not found naturally on any island greater than 300 miles from a mainland. _____ Organisms on islands are most similar to organisms on the nearby mainland, even when habitats on the mainland and island are quite different. _____ Invasive rats have colonized more than 80% of the world's islands.
A phylogenetic tree is a diagram that describes a phylogeny. A phylogeny is
A. the evolutionary history of a species or group of species. B. the geographic distribution of populations in a species. C. the generations of individuals in a population. D. the distribution of species in a given area in time. E. a list of character traits of individual species set in a tree diagram.
Which disorder is characterized by the overproduction of growth hormone in an adult?
A. acromegaly B. pituitary dwarfism C. diabetes mellitus D. simple goiter E. none of these
How do ectotherms primarily regulate their body temperature?
A) by adjusting their rate of metabolism B) by absorbing or releasing heat C) by eating more or less, depending on their need for body heat D) by panting when it gets too hot and shivering when it gets too cold