The study of the natural world through investigation

there are four trophic levels in a food chain: Algae, salmon, bears and humans. if algae produce 6500 kj of energy, calculate the amount of energy that is passed on to each trophic level

How many covalent bonds can one carbon atom form

About 92% of the blood is plasma. True False

Explain how a vaccine works using the following terms: Weakened, Antigen, Antibody, Immunity

If a lawn is fertilized and it doesn't rain, the grass often dies. why?

How the carbon atom's bonding tendencies lead to the formation of macromolecules

Smallest planet in the solar system

What is the definition of soil according to a soil scientist?

When muscles lack oxygen this will start to build up and cause fatigue?

A client is hospitalized with posterior nasal bleeding and has a gauze pack in the posterior nasal cavity. the nurse assesses the client and notes restlessness and anxiety and an oxygen saturation of 92%.