In the sensory system, the rods and cones are collectively referred to as...
a. photoreceptors
b. ganglion cells
c. color visions receptors
d. the fovea
Answer: a. photoreceptors
Biology & Microbiology
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Which is the last structure that a sperm travels through before it leaves the body?
a. ureter b. urethra c. vas deferens d. vas efferens e. epididymis
Biology & Microbiology
The cell-mediated response
a. involves helper T cells. b. involves the action of antibodies to destroy invaders. c. acts only on extracellular pathogens. d. results in the production of clones of B cells. e. includes all of these.
Biology & Microbiology
A systematic way of obtaining knowledge about the natural world is ____
a. science b. an hypothesis c. an experiment d. the variable e. a prediction
Biology & Microbiology
The only mammalian cells that do not have a nucleus are ___.
What will be an ideal response?
Biology & Microbiology