Which one of the following terms applies to the phylum Nematoda?
A. deuterostome
B. diploblastic
C. Parazoa
D. pseudocoelomate
Answer: D
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Which of the following statements about bile are false?
a. It emulsifies fats. b. It converts fats into droplets called micelles. c. It makes it easier for lipase to digest fats. d. It is yellow in color due to the presence of bilirubin. e. It emulsifies proteins.
In a tropical forest some leaves are dark green and some are light green. In a population of caterpillars, homozygous
dominant dark green caterpillars thrive eating the dark green foliage, while homozygous recessive light green caterpillars thrive eating light green foliage. However, heterozygous caterpillars of an intermediate color green are easily seen by birds and eaten, thus their numbers are far less than the dominants or recessives. This is an example of ____ selection.
a. directional b. stabilizing c. disruptive d. frequent e. mutational
Evidence that exposure to song is important in white-crowned sparrows learning to sing includes which of the following?
A. They need to hear songs from other male white-crowned sparrows from 10–50 days after hatching. B. They need to hear songs from any sparrow from 10–50 days after hatching to sing properly. C. White-crowned sparrows raised in a laboratory cannot learn how to sing properly. D. They must imprint on their father to learn how to sing their song properly. E. They will not produce any song at all if they do not hear other birds sing.
Which of the following refers to the area of Earth’s surface that is required to sustainably support a particular level of
development and consumption? a. demographic transition model b. carrying capacity c. ecological footprint d. biosphere e. ecological cohort