Who was the scientist who first proposed that all single-celled organisms should be put into their own kingdom?

Anton van Leeuwenhoek

Charles Darwin

Carolus Linnaeus

Ernst Haeckel

A researcher notices a decline in organism and population numbers over several years in a stream environment. What human activity may have affected organisms and populations in this way?

Individuals whose red blood cells are the correct shape and are able to resist malaria have a better chance of reaching reproductive age. this is known as

A client who weighs 176 pounds is receiving an iv infusion with esmolol hydrochloride (brevibloc) at 48 ml/hour. the iv solution is labeled with the concentration of brevibloc 10 mg/ml. how many mcg/kg/minute is the client receiving?

The Hershey and Chase experiments involved the preparation of two different types of radioactively labeled phage. Which of the following best explains why two preparations were required? A.

Which disease is a progressive, degenerative disease of the brain that ultimately results in dementia and is associated with a shortage of acetylcholine?

Why do the plants in an area determine the organisms that can live in tha area?

What happens to the air directly above land when the land gets hot?

According to the law of conservation of mass: One gram of potassium is mixed with four grams of oxygen. They undergo a chemical reaction. What is the mass of the product? (Choose only one answer) -1 -4 -5 -3

Why is the stem of the bean growing upward

5. Which planet is made mostly of gases? A Mars B Venus C Jupiter D Mercury