What is the estimated age of the trilobite fossils (bottom layer of fossils) ?

What is the connection between virus prevalence and animal populations?

Which Scientists' observations eventually led to the theory of continental drift

8. (7A) What happens to the movement of particles as a liquid becomes a gas?

Which causes the pH of a solution to increase? adding hydrogen ionis adding base adding protons adding acid

What structure does an amoeba, a one-celled organism, use to movie ingest and transport materials within the cell, because it has

Which body action is unlikely to occur during a fever? a. Shivering b. Decrease in heart rate O C. Flushed cheeks d. Sweating e. Increase in respiration

A group of cells that have the same function is called a (n).

The atmosphere of Earth contains primarily which gas? A.) Carbon dioxide B.) Methane C.) Oxygen D.) Nitrogen

Which organism is the primary consumer in this food chain? Oak tree squirrel owl and eagle

Which of the following is NOT caused by gravitational force? A. Gas and dust come together and form a planet. B. Stars cluster together to form a galaxy C. Planetes orbit a star D. Two atoms come together to form a molecule