A group of similar cells that perform a particular function is called a tissue. Each cell type has special features that enable it perform a particular function efficiently. Each cell is highly specialized. groups of such specialized cells are normally assembled together to form a tissue which performs a specific function like the epithelial tissue, muscular tissue.
The fruit flys population would be less since the apples isn’t there anymore. The reasoning behind that is because it’s a fruit fly they like being around fruit.
