A scientist is examining a cell of an organism and attempting to determine whether the organism is a genetic male or a genetic female. What evidence about the cell, if true, would be most relevant to this question?
A. The twenty-third pair of chromosomes includes an X chromosome.
B. The twenty-third pair of chromosomes includes a Y chromosome.
C. The nucleus contains 46 chromosomes in 23 pairs.
D. The cell contains protein-coding genes and regulator genes.
Answer: B
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Peter is playing hide-and-seek with his 6-year-old nephew, Teddy. Peter decides to look around the house room by room, shutting each door when he has finished looking in each room. The method that Peter is using to find Teddy is an example of which problem-solving strategy?
A. Attribution B. Algorithm C. Heuristic D. Divergent thinking
A participant will be less likely to be influenced by a group in a visual discrimination task if
a. the responses of the group members are incorrect. b. one member of the group responds correctly. c. the perceptual task is unambiguous. d. the perceptual task is ambiguous.
The type of play characterized by children playing with similar toys in similar ways but not together is called _____ play
Fill in the blank with correct word
In a long-term study of the effects of a token economy on mining safety, results showed that:
a. tokens influenced safety at first, but had no long-term effects b. tokens generally were not valued by the miners c. lost-time injuries were reduced significantly at both mines in the study d. lost-time injuries were reduced at one mine, but not at the other