Answer:
A is ur answer ur welcome hope this helps :) JACK
Explanation:
Answer: whats the picture
Explanation:
Vaccine is preventing the infection.
Antiviral is a medicine taken after infection
Answer:
yaaa you knew that air is everywhere it moves
Answer: The whole surface of Earth is a series of connected ecosystems. Ecosystems are often connected in a larger biome. Biomes are large sections of land, sea, or atmosphere. Forests, ponds, reefs, and tundra are all types of biomes, for example. They're organized very generally, based on the types of plants and animals that live in them. Within each forest, each pond, each reef, or each section of tundra, you'll find many different ecosystems.
Explanation: Hope this helps :)