Answer:
1. spontaneously
2. resting potential
3. action potentials
4. pacemaker potentials
5. K+
6. Na+
7. into
8. Ca+
Explanation:
Pacemaker cells (also known as sinoatrial node cells) are cells that generate rhythmic impulses and set the pace for blood pumping in the heart. These cells have the ability to rhythmically depolarize and initiate action potentials. In pacemaker cells, Ca2+ and Na+ levels are higher in the extracellular environment, while K+ concentration is higher intracellularly. The pacemaker action potentials have three phases: 1-depolarization, where membrane potential reaches -40 mV and voltage-gated Ca2+ channels open, 2-repolarization, where voltage-gated Ca2+ channels close and voltage-gated K+ channels open, and finally 3-gradual depolarization, which is caused by the slow influx of Na+ ions.
Answer:
I would say keep your head up and work hard to learn and have a professinal help you train
Explanation:
Calcium-fortified juices, cereals, breads, rice milk, or almond milk.
Canned fish (sardines, salmon with bones)
Soybeans, soy products (tofu made with calcium sulfate, soy yogurt, tempeh), and some other beans.
Some leafy greens (collard and turnip greens, kale, bok choy)
C.I think it would be c because half and half seems balanced so if he was to eat that it woulde be too much or too little it woulde be just fine
