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.
he Blue-cheeked Bee-eater, Merops persicus, is a near passerine bird in the bee-eater family, Meropi
In the retina, there are two types of light receptor cells: Rods are sensitive to differences in lig
Movement of acorns by blue jays allows gene flow between oak populations