Answer: It describes water molecules moving across a membrane, which allows the water molecules to pass in and out freely, but forbids the motion of other molecules.
Explanation:
A in Biology class last year.
Answer:
b
Explanation:
the mates will want a pretty mates , therefore b is correct
Answer:
Inside the muscle, calcium facilitates the interaction between actin and myosin during contractions (2,6). ... Calcium binds to the troponin, causing a position change in tropomyosin, exposing the actin sites that myosin will attach to for a muscle contraction (5,6). Blood Clotting. Without calcium blood would not clot.
Explanation:
The uses of nuclear power are :<span>Nuclear energy can be used to create electricity, but it must first be released from the atom. In nuclear </span>fission<span>, atoms are split to release the energy. A nuclear reactor, or power plant, is a series of machines that can control nuclear </span>fission<span> to produce electricity.
-Me </span>
