What are the answer choices given?
Contractility is the ability of muscle cells to forcefully shorten
(hope this helps!)
The answers are a smoke detector, a telephone, and a garbage can. The fire extinguisher is an optional thing to have, so you can be super careful. Unless you're talking about a restaurant's kitchen, then you have to have a fire extinguisher because it is a required thing to have.
Hope that helps.
Answer: Invades sorrounding tissues.
Malignant tumor (cancerous) can grow rapidly, invade and destroy nearby normal tissues, and spread throughout the body.
