Answer:
<u><em>The membrane potential is the basis for the conduction of nerve impulses along the cell membranes of neurons. Ions that are important in the formation of a nerve impulse include sodium (Na+) and potassium (K+). Ion channels and ion pumps are very specific; they allow only certain ions through the cell membrane.</em></u>
Explanation:
B and A are the correct answers
The second sentence would be the correct replacement for the sentence
The correct answer is letter D. The sidestroke is probably the stroke that would most likely used up the most calories in the body. This is because the movement is concentrated on one side of the body only, putting effort too much in that area causes blood to pool in the muscles causing extra effort in the body's system.
Since social media is a relatively new technology, there hasn't been much research done to determine if using it would have positive or negative long-term effects. But several studies have discovered a substantial correlation between using social media excessively and a higher risk of melancholy, anxiety, loneliness, self-harm, and even s*icide ideation. The majority of us now use our smartphones or tablets to access social media. While this makes staying in contact incredibly simple, it also makes social media always available. This continual, high-speed connectivity can lead to issues with impulse control, damage your ability to concentrate and focus, interfere with your sleep, and make you dependent on your phone.
