Rods are to ____ as cones are to ____.
a. the periphery; the fovea
b. red; blue
c. vertebrates; invertebrates
d. reading text; reading road signs
Question 2
Why is the Aplysia such a popular animal for single-cell studies of learning?
a. Aplysia have neurons that are virtually identical from one individual to another.
b. Aplysia have greater learning abilities than other invertebrates.
c. Aplysia have short-term learning but not long-term learning.
d. Aplysia have only two neurotransmitters, one excitatory and one inhibitory.
A 19-foot-long blue whale skull in the collections of the Smithsonian Museum of Natural History
Volcanic plateaus (red) and impact basins (blue) dominate this topographic map of Mars
Blue Flowers
John Marin, Untitled (The Blue Sea).
The distribution of cones and rods over the human retina. The figure illustrates the number of cones ...
) Random assortment of maternal (blue) and paternal (purple) chromosomes at metaphase