What is the difference between a theroy and a hypothesis

Discuss on the food habits of the Europeans in the early twentieth century.

Who concluded that in dna adenine levels were equal to thymine levels and cytosine were equal to guanine levels

How many amino acids are common to all living systems?

A (n) is what a species does in its habitat to survive.

If you have an element with atomic no of 3 and 14 nuetrons how many what would be the atomic mass

The process of transducing air pressure waves into neural messages that the brain interprets as meaningful sound is known as

Why does photosynthesis require water? a. because water provides oxygen atoms. b. because water provides electrons. c. because water accepts electrons. d. because water acts as a catalyst.

An education guess or rational explanation about a specific phenomenon

What are the technical name for red blood cells white blood cells and platelets?

What are the resources of the ocean