A vaccine can help keep people healthy and protect them from a certain virus. For example people in the United States get the flu shot when they get this shot the vaccine wont magically get rid of the virus but rather help them fight it off and protect them in the future if they keep up to date getting the vaccine
Answer:
B
Explanation:
negative feedback is used to regulate feedback
Answer:
They are home to many species of fish and Marine invertebrates.
Explanation:
Coral reef refers to large underwater ecosystem which comprises of dead and living corals.
Coral reef is made up of calcium carbonate.
They serve as habitat or home for Marine animals.
They are the source of nitrogen and essential nutrients for Marine animals.
Mammal? Is this for science or?
Yes, Butane has its four carbon atoms bonded in a continuous chain. Isobutane has a branched structure.
They have the same molecular formula but different structural formulas
