By helping the ones who are already endangered and minimize habitat loss, global warming, etc.
The answer is step 3. Nerve impulse on a muscle cell induces release of calcium ions
Steps of a muscle contraction are:
1. Nerve impulse travels down the axon and causes a release of acetylcholine.
2. Acetylcholine binds to the receptor of a muscle cell.
3. Nerve impulse on a muscle cell induces a release of calcium ions.
4. Calcium ions induce exposing of myosin to actin.
5. Sliding of actin filaments past myosin filaments.
6. The muscle contract.
Answer:
Paramecium can be found in pond water.
Explanation:
Paramecium can also be found in brackish and salt water. These protists are single celled organisms. Here is a picture of a paramecium. The video below shows several paramecium feeding. They are using their cilia, which are found all along the outside of the cell membrane, for movement.
Hope this helps.
Self interest is the key principle that provides for the economic theory of supply and demand. Without self interest free market would struggle to regulate itself
