D. Potassium
The formula for phosphoric acid is H3PO4.
Potassium is K, not P.
Microglia - immune cells; smallest and least abundant
protect against foreign invaders
Fibrous connective tissue
Answer:
Explanation:
Producer: Plants, use sunlight for energy, creates their own energy
Consumer: Uses other living things for food, can’t create their own energy, we are consumers
Decomposers: Mushrooms and fungi, break down decaying plants or animals, their actions creates nutrients for the soil