An important role of burrowing animals is:
a. reducing detritus in the sediment.
b. maintaining the structure of marine sediments.
c. nutrient cycling.
d. circulating water near the bottom.
C
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The ________ joints have no joint cavity and usually do not permit movement. Sutures between skull bones are this kind of joint
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Which type of algae is believed to have generated much of our current petroleum reserves?
A) Chrysophyceae: The Golden-Brown Algae B) Phaeophyceae: The Brown Algae C) Bacillariophyta: The Diatoms
A single-ring nitrogenous base found in DNA and RNA
What will be an ideal response?
Which of the following would limit your possible exposure to the Lassa virus?
A) using insect repellant B) not eating bushmeat C) keeping a rodent-free home D) avoiding sexual intercourse E) not eating anything that hasn't been well cooked