Answer:
Tissue
Tissue is the group of similar cells that are common in origin to perform particular function. Tissue system is the group of similar tissues that are common in origin and perform particular function. Organs are made up of tissue system.
Explanation:
It’s to get all your different bones the right nutrients they need so they do get weak.
Answer:
Explanation:
A gene can be turned on or off by environmental factors or from other cells that activate proteins known as transcription factors.
Acids produce hydrogen ions, H+, in water. Bases produce hydroxide ions, OH-.