What type of fungus is responsible for a disease that has wiped out large numbers of harlequin frogs?
1.Ascomycete
2.Basidiomycete
3.Chytrid
4.Zygomycete
3
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According to the above table, the foraging
characteristic that would benefit an animal most in a stable ecology would be? a. A baby garter snake captures and eats a slug. b. A sitter because it would have more trouble adapting to a changing environment c. A forager because it has the ability to adapt quickly. d. Both the sitter and the forager are equally adept in a stable ecosystem. e. All of these would benefit an animal the most.
What is the only type of chemical signal that does not alter the physiology of the animal producing that signal?
A) neural B) paracrine C) neuroendocrine D) pheromones
Which of the following is NOT true of DNA-binding proteins?
a. Many are dimers that combine with two sites on the DNA. b. Regulatory proteins often bind inverted repeats on DNA. c. A leucine zipper is a common domain to maintain proper conformation. d. Most bind to DNA in a nonspecific manner.
The type of microscope in which you would see brightly illuminated specimens against a black background is
A) Fluorescence B) Phase-contrast C) Electron D) Bright-field E) Dark-field