Which marine zone is one of the most stressful habitats on Earth?
a. the pelagic province
b. the continental shelf
c. deep sea trenches
d. the abyssal zone
e. the intertidal zone
ANSWER: e
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What is the name for the diagnostic technique used to measure forced expiratory volume and forced vital capacity?
a. spirology b. spirography c. spirometry d. spironalysis
In the U.S., __________ is the main reason why more than 700 species are listed as threatened and
endangered.
What will be an ideal response?Recombination of two genes can occur because of ________________.
a) only independent assortment b) only crossing over c) both independent assortment or crossing over d) mutation
Below is a molecule of caffeine. Which of the following features are not present in a molecule of caffeine?
A) a carbonyl group
B) a carboxyl group
C) a methyl group
D) a double bond