The growth of plants and formation of land mammals characterized the paleozoic era.
B hope this helps a lot :)
Answer: the earh was formed by GOD
Explanation:
Okay so there are two types of ERs, smooth and rough.
Rough endoplasmic reticulum contain ribosomes on the outer surface. It provides large surface area for proteinsynthesis and the synthesis of glycoproteins and also provides a pathway for the transport of materials.
Smooth ER synthesises, stores and transports lipids and carbohydrates.
Hope this helps
