Which of the following is a correct pair based on their shared characteristics?
a. the universe and a closed system
b. the universe and an open system
c. an ocean and an open system
d. an ocean and a closed system
Ans: c. an ocean and an open system
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Using actual landmarks within DNA sequences, scientists can generate a _______ map.
A. genetic B. DNA C. physical D. chromosomal
In oxidative phosphorylation within a prokaryote, electrons are passed through a series of carriers to an organic molecule at the end of the transport chain.
a. True b. False
Before the invention of modern abrasive cleansers, which feature of horsetails was used by humans to scrub pots and
polish metals?
a. waxy spores b. silica-rich leaves c. lignin-rich leaves d. cones at the tips of their stems e. silica-rich stems
As long as your sample is large enough, you don't have to worry about using the sample standard deviation in place of the unknown population standard deviation in constructing a confidence interval because ________.
A. for low degrees of freedom, the t-distribution is similar to the standard normal distribution B. the sample standard deviation is an efficient estimator of the population standard deviation C. for all degrees of freedom, the t-distribution is bell-shaped D. for a large sample, the t-distribution is similar to the standard normal distribution