The time interval used in measuring the age of rocks is called
a. radioisotope unit.
b. radiometric unit.
c. radiometric life.
d. radioisotope life.
e. half-life.
E
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Polyploidy in plants
A. is very common. B. allows for adaptation to diverse environments. C. may alter the levels of gene expression. D. allows humans to create plants with unusual flowers. E. All of these statements are true regarding polyploidy in plants.
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.
Briefly describe the kinds of trash, amount of trash, and economic impact of dumping trash in the ocean, using Florida as an example
What will be an ideal response?
An Olympic marathon runner probably has more ____ than does an Olympic weight lifter
a. white muscle fibers b. red muscle fibers c. creatine phosphate d. stored ATP e. Stored oxygen