Answer:
The muscle tissue shortens to performs it's function which we know as muscle contraction
Answer: A. The onion cells have lysosomes, and the cheek cells do not.
Explanation:
Answer:
A cause or starting point the source of a rumor. 2 : the beginning of a stream of water the source of the Nile River. 3 : someone or something that supplies information a reference source. 4 : someone or something that provides what is needed a source of supplies a source of strength.