In evaluating the credibility of a null hypothesis, it is standard to construct a single value derived from the sample which is known as the:
A. random sample.
B. sample standard deviation.
C. alternative hypothesis.
D. test statistic.
Answer: D
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Which of the following is NOT commonly used to describe a community?
a. species richness b. relative abundance c. species diversity d. dominant species e. trophic abundance
Strand B has the same order of nucleotides as
strand(s) a. A. b. C. c. D. d. C and D. e. A and D.
Which of the following statements about fungi is true?
a. All are prokaryotic. b. All are multicellular. c. All require organic material for growth. d. All grow using sunlight and carbon dioxide. e. All are plants.
The Great Dane and Chihuahua are both domestic dogs, the same species. However, mating between them is limited by:
A) hybrid infertility. B) behavioral isolation. C) mechanical incompatibility. D) heterozygote disadvantage.