The needles of pines and other conifers are adapted to:
a. conserve water.
b. defend against herbivores.
c. reduce the effects of intense sunlight.
d. reduce the effects of snow and ice.
e. reduce the effects of wind.
A
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Ribosomes that do not anchor to the surface of the rough endoplasmic reticulum during translation most probably
A) are synthesizing cytoplasmic proteins. B) have a defect in ribosomal proteins that allow attachment to the ER. C) have a signal/trafficking error. D) do not make the appropriate anchor protein. E) all of the above
Neurons in the higher vocal center of a male zebra finch's brain are stimulated to proliferate by testosterone
a. True b. False
What is the term that describes the study of the relationship between living things and components of their environment?
a. zoology b. ecology c. herpetology d. analogy e. ichnology
Which of the following would be least likely to form a fossil?
a. a marine organism b. an organism living in a lake c. an animal with an exoskeleton d. an animal with an endoskeleton e. an organism in the tropical rain forest