If you don't understand how to upload a file for your question you just look for the button that says attach file, and the letter B is for if you want to put an answer in bold.
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Answers: A and C
Explanation: Insulators are non metals and Conductors are metals the best Conductor is copper.
Answer:
a greater volume of blood returning to the heart
Explanation:
Your heart rate goes up when your heart starts pumping faster.
Answer:
The correct oder is given below:
Explanation:
The oder of the events during muscle conratction as as follows:
- Acetylcholine crosses the gap at the neuromuscular junction.
- Calcium is released into the sarcoplasm.
- Actin and myosin form links.
- Myosin cross-bridges pull actin filaments inward.
