The ratio of rods to cones is approximately
a. 10 to 1
b. 1 to 10
c. 20 to 1
d. 1 to 20
e. 1 to 1
c
You might also like to view...
Infants learn to control their arms before they learn to control their legs, illustrating the _____ rule.
A) proximodistal B) cephalocaudal C) dorsal striatal D) ventral medial
Suzanne randomly checks up on her employees several times throughout the day to praise them if they are working hard. None of the employees know when Suzanne will be checking up on them. Suzanne is using a ____ schedule of reinforcement
a. fixed-interval c. variable-interval b. fixed-ratio d. variable-ratio
According to cognitive theory, infants use their early relationships to develop a set of assumptions that become a frame of reference that may be used later in life. Such a set of assumptions is called a
referential hypothesis. working model. schematic plan. work-in-progress.
In developing nations, the mortality rate for children under age 5 has been greatly reduced due to ______
increased food production and increased childhood vaccinations increased parental income and increased level of education increased iron consumption and decreased childhood vaccinations increased parental education and increased level of income