Because it allows them to breathe and function.
Answer:
the producer that eats frogs would die out
Answer:
her arms are puffy red and swollen
Explanation:
These are physical signs (symptoms) that show that the girl may have an allergic reaction. Hope this helps
Answer:
properties of carbon responsible for huge number of organic compounds
tetravalency it has a valency of four so one carbon atom can bond with four other atoms or form four bond
