Most of the following choices are examples of piloting. Select the exception
a. Gray whales use visual cues to migrate from Alaska to Baja California.
b. Pacific salmon use olfactory cues to find the stream where they hatched.
c. Female digger wasps use landmarks to find their nests.
d. Indigo buntings use the position of stars to orient during migration.
e. A hiker looks for familiar rock formations as she finds her way back to the trailhead.
D
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Based on hierarchical classifications and features, which statement about humans is true?
a. Humans are deuterostomes. b. Humans are acoelomates. c. Humans are diploblasts. d. Humans are asymmetrical.
Mendel's dihybrid crosses, but not his monohybrid crosses, show that
a. some genes are linked together. b. the two alleles controlling a trait are divided equally among the gametes. c. alleles for different traits are inherited independently. d. one of the pair of alleles is dominant to the other. e. the crossing of two different homozygous forms will not produce any offspring in the first generation that will look like either of the parents.
Four of the five answers listed below are produced by the same lobe of the pituitary. Select the
exception. a. antidiuretic hormone b. prolactin c. corticotropin d. somatotropin e. luteinizing hormone
Which of the following conditions is NOT normally found at tropical latitudes?
a) High precipitation b) Low precipitation c) Hot temperatures d) A diverse plant community