Answer:
Every part of cell performs a specific function.
Explanation:
All parts of the cell such as organelles, cytoplasm and cell membrane etc helps to function of the cell properly because every part of the cell perform a specific function which is necessary for the survival of the cell. Some part of the cell helps in transportation such as endoplasmic reticulum, some removes waste material from the cell i. e. lysosomes, while organelle like mitochondria formed energy in the form of ATP which is used by the cell for doing different activities.
For 1. the answer is The muscular system is responsible for the movement of the human body. Each of these muscles is a discrete organ constructed of skeletal muscle tissue, blood vessels, tendons, and nerves. Muscle tissue is also found of the heart, digestive organs, and blood vessels.