Answer:The plasma membrane, or the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Explanation:
Answer: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology, Direct observation.
Explanation:
Smith is pursuing an ekg technician certification program. He will be one of the healthcare professionals referred to as cardiovascular technologists and technicians. They help monitor heart health on a broader level.
i believe its carbon dating.
i might be wrong.
hope this helps!
