Do both males and females appear to be affected?
a. Yes
b. No
b
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Thiomargarita species store large amounts of ________ in huge internal vacuoles.
A. nitrate B. oxygen C. sulfate D. hydrogen sulfide
Many closely related duck species exhibit ____, the dramatic variation in the appearance of males but not females,
which is an almost certain sign of ____.
a. asexual reproduction; sexual selection b. asexual reproduction; artificial selection c. sexual dimorphism; sexual selection d. sexual dimorphism; artificial selection e. sexual uniformitarianism; sexual selection
Interneurons ____
a. act as relay stations b. detect stimuli c. control muscles and glands d. are nearly always found in the brain and spinal cord, detect stimuli, and control muscles and glands e. are nearly always found in the brain and spinal cord, but they only detect stimuli
A new drug interferes with the function of the dendrites of a neuron. What will happen to this neuron?
A) The neuron will continuously send signals. B) The neuron cannot be stimulated to send a signal along its axon. C) The neuron will die off. D) The neuron will sometimes send signals and will sometimes not send signals.