A microscope is to see smaller things that you can’t see and it is a really good tool.
Answer:
Smooth and cardiac
Explanation:
Smooth and cardiac muscles are both involuntary.
This means we do not consciously control them. Smooth muscles are found, for example, in the esophagus, and small intestine. The cardiac muscles are found in the heart.
The skeletal muscles are those that we control consciously, such as the muscles for moving our arms and legs.
A cell membrane protects a cell from it's surroundings. The cell membrane controls the movement of substances from the outside and inside of cells and organelles.
