Scientists using evolutionary systematics to construct a phylogenetic tree would use:a

the number of shared characters the organisms posses.
b. a combination of ancestral and derived characters.
c. primarily polyphyletic groupings.
d. only derived characters.
e. only ancestral characters.


b

Biology & Microbiology

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What structure is required to be present in order for a reactant to turn into an intermediate during a normal reaction? a. Enzyme b. None are required

c. Substrate d. All are required. e. Product

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If a country engaged in free trade has an unlimited quantity of imports of a good available at a fixed price, the supply curve for that good is

a. upward sloping. b. perfectly inelastic. c. downward sloping. d. perfectly elastic.

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Population increases may be stopped by reduced resources or by the buildup of ________

Fill in the blank(s) with correct word

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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

Biology & Microbiology