The answer is D, tissue. A group of cells makes a tissue and tissues make organs, joints, and connections.
Answer:
A true
Explanation:
Living things are made of four types of molecules, known as macromolecules. These macromolecules are proteins, nucleic acids (DNA and RNA), lipids (fats) and carbohydrates. Each type of macromolecule is made of its own building blocks, which are intricately connected to form different shapes.
Live in crowded, unsanitary conditions
Answer: When no oxygen is present, the electron transport chain can't run
Explanation: I know this because I am in biology and I am passing with a 99
