Biologists refer to _____ as the extent to which a trait increases the chances that organisms that possess this trait will survive and reproduce at a higher rate than competitors who lack it
A) instinct
B) fitness
C) drift
D) heritability
Answer: B
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What happened when the Pima Indians of the Sonoran desert switched from their traditional diet to a more typical American diet?
a. Increasing prevalence of malnutrition b. Increasing prevalence of obesity c. Increasing prevalence of anorexia d. Increasing prevalence of vitamin deficiencies
What would a psychologist call it when members of a couple talk about their sexual lives with one another?
a. Sexting b. A bad idea; actions speak louder than words c. Foreplay d. Sexual communication
Which of the following is a plausible explanation for how maternal influenza might lead to schizophrenia later in life?
a. The flu virus may lie dormant in the brain until adolescence when it becomes active and initiates the degeneration that results in the symptoms of schizophrenia. b. The flu exposure may alter the fetal genes such that a susceptibility to schizophrenia is now part of the child's genetic makeup. c. Maternal antibodies could cross the placenta and interfere with brain development such that the risk of developing schizophrenia is enhanced later in life. d. The flu virus frequently has long-term effects on the behavior of affected individuals; maternal infection with influenza may result in an environment that is likely to trigger schizophrenia in the susceptible individual.
What is the concept of chunking? What are the benefits of chunking?
What will be an ideal response?