DNA replication is described as being conservative
__________________ Indicate whether the statement is true or false.
F, semiconservative
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Recall the experiment on ant navigation. To run a controlled experiment, what parameters were held constant for the test group of 75 ants?
A) stride number B) leg length C) stride number, leg length, and environmental temperature D) all variables except leg length
Based on the fossil record, which of the following structures likely evolved first as plants made the transition to land?
A. leaves B. branches C. roots D. flowers
Average height of college students increased throughout the 20th century because
A) more students attended college. B) more short students went into military service instead of college. C) nutrition improved greatly in that time. D) many mutations conferring great height occurred during that time period.
A directional adjustment of growth in response to environmental stimuli is called ____
a. circadian rhythm b. vernalization c. photoperiodism d. statolith e. tropism