Which of the following macromolecules can be broken down into intermediate products that enter cellular respiration?
A. lipids
B. nucleic acids
C. proteins
D. carbohydrates
E. All of the choices are correct.
Answer: E
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The four eras each represents an equal time of Earth's history.
A. True, the four eras are each roughly the same length of time B. False, the four eras are vastly different in their durations
In non-cyclic photophosphorylation, where do electrons go after being released from photosystem II?
1.through an electron transport chain and into photosystem I 2.into photosystem I, through an electron transport chain, and then into NADPH 3.back into water 4.back into photosystem II
________ is expression of two contrasting alleles that results in an intermediate phenotype.
Fill in the blank(s) with the appropriate word(s).
The government runs an experiment where a random sample of 200 adults over 40 get a 5% tax cut and a random sample of 200 adults under 40 get no tax cut. Their results show that spending, on average, increased 8% with a 5% tax cut. They conclude that a 5% tax cut for all adult Americans will increase spending by 8%. Why is this logic flawed?
A. The measured effect of the treatment on the treated may be biased. B. A 5% tax cut for all Americans suffers from selection bias. C. The effect of the treatment on the treated may not be the average treatment effect. D. The logic is not flawed.