Some animals, like humans, have two eyes on the front of the head that perceive a mostly overlapping
visual field. In contrast, some herbivores (rabbits, for example) have eyes on the sides of their head
and visual fields that may not overlap at all. How does this impact perception of the environment?
a. Humans have better depth perception and a wider field of vision than rabbits.
b. Humans have poorer depth perception and a narrower field of vision than rabbits.
c. Humans have better depth perception and a narrower field of vision than rabbits.
d. Humans have poorer depth perception and a wider field of vision than rabbits.
e. Due to integration by the brain, there is really no difference in depth perception or visual
field size when comparing humans to rabbits.
C
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RNA polymerase can do which one of the following?
A. allow RNA-DNA hybrids to form B. release a finished RNA transcript from a DNA template C. separate DNA strands D. restore the original DNA strands E. RNA polymerase is capable of all of these activities.
What is the correct sequence of polypeptide transport in the secretory pathway?
a. plasma membrane ? Golgi bodies ? ER ? ribosome b. plasma membrane ? ER ? Golgi bodies ? ribosome c. ribosome ? Golgi bodies ? ER ? plasma membrane d. ribosome ? ER ? Golgi bodies ? plasma membrane e. Golgi bodies ? ribosomes ? ER ? plasma membrane
How does mitotic prophase differ from prophase I of meiosis?
a. Chromatin supercoils only in mitotic prophase. b. The nuclear envelope disappears only in prophase I of meiosis. c. Synapsis occurs in mitotic prophase and but not in meiotic prophase I. d. The chromatids separate in mitotic prophase, not in prophase I of meiosis. e. Crossing over is characteristic of prophase I of meiosis but not of mitotic prophase.
Alcohols are used for
A) disinfection. B) sterilization. C) antisepsis. D) both sterilization and disinfection. E) both antisepsis and disinfection.