Answer: A
Explanation: gravitation keeps moon in circular orbit.
Without gravitational force Moon would move in
Linear path.
Including DNA ATP, & many identical or nearly identical enzymes.
Since carotenoids stabilize dangerous free radicals, we can assume that their function is to protect the cell from the free radicals.
Answer:
B . The hinge joint of the elbow.
Explanation:
Uniaxial joint allows for motion in a single phase.
Answer: Water evaporates from the Earth's surface and rises on warm updrafts into the atmosphere. It condenses into clouds, is blown by the wind, and then falls back to the Earth as rain or snow.
Explanation: I hope this helps!