The answer is A. The heart pumps blood through the circulatory system, and the lungs help the oxygen transport throughout the respiratory system. :)
Explanation:
Protons are positively charged sub-atomic particles that are in the nucleus of an atom and have a relative mass of 1. Neutrons have a neutral charge, meaning they have no charge, and are also in the nucleus of an atom with a relative mass of 1.Electrons are negatively charged particles that orbit the nucleus in electron clouds. They are said to have a relative mass of 0.
For example, a sodium atom is number 11 on the periodic table. The atomic number of sodium tells us the no. of protons contained within its nucleus as well as the number of electrons orbiting. So we can say that sodiun has 11 electrons and 11 protons. To determine the number of neutrons, simply subtract the number of protons from the mass number( found on periodic table)
23-11=12 neutrons
True! hope this helps, have a great day!!
Answer:
Increased by two to ten percent.
Explanation:
The exercise improves the flexibility and strength of the individual. Exercise involves the different postures and activities depending on the type of exercise and need of individual.
The difficulty level of the exercise starts from simple and then move to the moderate and hard level. The different amount of the loads are given to the individual during the exercise. If an individual can easily handle the load, this load can be gradually increased from 2 % to the 10% depending on the individual's ability.
Thus, the correct answer is option (2).
