<span>Choices (b) and (c) are the most correct. Bilateral symmetry requires a central axis for there to be two halves. In addition, this type of symmetry requires a head, which will encounter the environment before any other part of the body and move in the direction of travel. Most animals exhibit this characteristic.</span>
The autonomic nervous system is divided into the sympathetic and parasympathetic subdivisions.
<span>Surface currents are generated largely by wind. Their patterns are determined by wind direction, Coriolis forces from the Earth’s rotation, and the position of landforms that interact with the currents. Surface wind-driven currents generate upwelling currents in conjunction with landforms, creating deepwater currents. </span>
Explanation:
Mitochondria are cell organelles that are found in all human body cells except mature red blood cells. These organelles with a double membrane are the location in which cellular respiration occurs.
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