Ovulation typically produces just one egg per cycle. Why does ejaculate contain more than just one sperm?
a. To increase chances of reaching the ovum and to work together to achieve fertilization through combined enzyme production
b. To stimulate ovulation for future egg production
c. To make up the bulk of the semen
d. To store excess sperm in the female body, facilitating fertility in case sexual contact does not occur before the next cycle
a
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According to the retinex theory of color vision, how do we perceive color? a. We compare the rates of responses by three types of cones
b. We compare an object to other objects in the scene. c. We detect whether a cell in the retina is increasing or decreasing its response. d. We compare the mean firing rate of cones to the mean rate of rods.
Of these, which is most likely to either increase or decrease happiness for a period of years? a. Divorce or widowhood produces a long-lasting decrease in happiness
b. Moving to a warmer climate produces a long-lasting increase in happiness. c. Growing older leads to a gradual but permanent decrease in happiness. d. Winning a lottery leads to a long-lasting increase in happiness.
In reading, the process of identifying a unique pattern of letters is called a. intonation
b. phonological awareness. c. word recognition. d. divergent thinking.
Children typically begin to speak their first words at around ____.?
a. ?six months b. ?nine months c. ?12 months d. ?15 months