In the 1900s, the leading causes of death were due to <span>bacteria or viruses. It might be said that infectious diseases lead cause of death in the world and in the US. It was after 1950´s that infectious diseases and death rates form these illnesses were reduced.
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<h3>Ionisation energy:-</h3>
Ionisation energy is the minimum amount of energy required to remove the most loosely bound electron, the valence electron, of an isolated neutral gaseous atom or molecule...
Sexual and reproductive health education is really important in school so that way kids can learn how to avoid getting STD’s and all that. Often when schools poorly teach sexual and reproductive health education, students from that school end up having a poor knowledge on sex and reproduction and they’re more likely to end up having unplanned pregnancies and getting STD’s that could be very dangerous to health. They’re also more likely to be unaware of why they may be experiencing certain health issues from reproductive and sexual-related things.
Answer: B
Explanation:
After a muscle fiber is stimulated by a nerve signal, a release of stored calcium ions leads to muscle contraction.
Common electrolytes include sodium, chloride, magnesium, calcium and potassium.
Sodium and potassium help in the generation of nerve impulses while calcium aids muscle contraction. Sodium is also actively involved in the movement across cell membranes.
