ATP is required during muscle contraction because ATP allows myosin heads to
A) bind to actin.
B) pivot and pull on actin.
C) release actin.
D) recock.
C
Environmental & Atmospheric Sciences
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Climate and vegetation vary with changes in latitude and with changes in ____________________
Fill in the blanks with correct word
Environmental & Atmospheric Sciences
All of the following are extensively recycled except
A. lead. B. copper. C. platinum. D. manganese.
Environmental & Atmospheric Sciences
Why did Hutton propose what eventually became known as the principle of superposition?
A. To explain the existence of fossils found in rocks he was studying. B. To explain that the earth must be very old based on his observations. C. To defend Biblical accounts for the formation of the earth.
Environmental & Atmospheric Sciences
Where on the following world map are the lowest salinities?
A. A B. B C. C D. D
Environmental & Atmospheric Sciences