The energy-rich compound needed by organism is : Carbohydrates
Carbohydrates consist of the combination of the existing Carbon, Hydrogen, and Oxygen alone.
For human, The source of carbohydrates could be found in almost every food, but the huge amount could be found in rice, potato, corn, cassava, oatmeal, etc
hope this helps
When an object from a pause state begins to move the potential energy is changed into kinetic energy. One of the example is the yo-yo, it has stored energy due to its position. Once the yo-yo begins its fall the potential energy will change to kinetic energy and vice versa.
Answer:
Only cells contain cytoplasm
Explanation:
Viruses are microscopic creatures (not alive though), that can use genetic material such as RNA or DNA, just like cells.
About protective covering, viruses use a capsule to protect this genetic materials, while cells use the cell membrane and the cell wall (like plants and some bacteria).