The homo sapiens appeared after two million years ago.Some of them spread from Africa into Asia and Europe.
Dependent variable: rats ability to solve the maze (depends on caffeine)
independent variable: 100 rats (stays the same and is not affected)
<span>Types of Nucleic Acids. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material found in all living organisms, ranging from single-celled bacteria to multicellular mammals.
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Answer:
insulin/glucose/liver/pancreas
The Jurassic is a period of Mesozoic.