Which of the following was the first to believe that all living things were connected by common decent and that organisms would change according to their environment?
a. Charles Darwin.
b. Charles Lyell.
c. Erasmus Darwin.
d. Thomas Malthus.
C
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Using simple random sampling, 100 males were drawn from a population and asked their age. The mean age for these men was 22. The standard error for the sample was 5. We are 68% confident that the population parameter is:
a. 22 b. Between 19.5 and 24.5 c. Between 17 and 27 d. Between 12 and 32 e. Not enough information to calculate
Scientists generate ______ or proposed explanations for a given phenomenon that can be tested by research.
A. theories B. hypotheses C. cohorts D. subjective opinions
The first step in the research process is ____
a. identifying an idea and searching the literature to form the research question b. forming a testable, refutable hypothesis based on current theories c. deciding which individuals should participate and how they should be recruited d. selecting a research and analytic strategy based on what is typically used
The primary function of human capability for strong emotions appears to be
A. survival. B. recreation. C. empathy. D. creativity.