Which part of the spleen contains masses of lymphocytes?
a. nodes
b. marrow
c. red pulp
d. white pulp
e. clear pulp
ANSWER: d
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"Epigenetic" means
A) "inside the gene." B) "inside the protein." C) "outside the gene." D) "outside the protein."
Pigs have digitigrade locomotion because they walk on
a. their ankles. b. the soles of their feet. c. the tips of their toes, which are modified as hooves. d. their hands and knees.
Select the choices that are ways that the hypothalamus controls the activity of the anterior pituitary.
a. neurons of the hypothalamus b. releasing hormones of the hypothalamus c. inhibiting hormones of the hypothalamus
Modern restoration biologists recognize that it may not be prudent to restore the same species to an ecosystem that has been disturbed. Which of the following statements and or explanations supports this?
A. Restoring an ecosystem should involve rebuilding the systems that allowed the habitat to successfully operate. B. Restoring an ecosystem requires a replica of the original state, this version of restoration is called "pristine." C. Due to global warming certain species may no longer flourish in the ecosystem. D. Often we do not have a full list of species that made up the original ecosystem.