There are between 100 and 300 million sperm in one ejaculation. How many will make it to the ovum during sexual intercourse?
A. 1,000
B. 500,000
C. 5,000,000
D. a few hundred
Answer: D
You might also like to view...
The DSM-IV criteria for intellectual disability are an IQ that is . . .
a. significantly below average and symptom onset prior to age 18 b. significantly below average, deficits in adaptive functioning, and onset prior to age 18 c. significantly below average, deficits in communication, and onset prior to age 18 d. significantly below average and deficits in adaptive functioning
Anthony heard a report about a study in the Journal of the
American Medical Association that stated working night shifts causes heart attacks. When he read the study he found that the researchers had compared the rates of heart attacks between day and night shift workers. This was not an experimental design and subjects were not randomly assigned. If Anthony thinks critically about this study he would conclude that _____ a) this is good evidence that night shift work causes heart attacks. b) this proves it is unhealthy to work night shifts. c) this study shows a correlation, proving causality, between night shifts and heart attacks. d) this type of study can't provide evidence of causes.
The most common type of learning disorder is ______
a. mathematics disorder c. dyslexia b. disorder of written expression d. articulation disorder
Which type of learning occurs when we observe other people act?
A. operant conditioning B. classical conditioning C. insight learning D. observational learning