What two opposing roles do turbidity currents play in shaping the continental shelf?
What will be an ideal response?
Turbidity currents play a major role in carving and deepening submarine canyons that were formed during the last ice age. These currents are also responsible for deposition of massive amounts of sediments on the bottom of the continental slope in the region of the continental rise.
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If the multiregional hypothesis of human origins is correct, modern human populations last shared a common ancestor around ____ years ago. If the out-of-Africa hypothesis is correct, we last shared a common ancestor around ____ years ago
Fill in the blank with the appropriate word.
Mitochondria are responsible for generating _______ for the cell in the form of _______.
a. cytoplasm; ATP b. energy; glucose c. energy; ATP d. cytoplasm; glucose
Freshwater fish must excrete ______ and actively accumulate _______
a. water; urea b. urea; water c. salt; urea d. water; salt e. urea; water
Protists in freshwater systems:
What will be an ideal response?