PBS 1.2

Front

What is the function of the pulmonary vein?

Back

The pulmonary vein carries oxygenated blood from the lungs to the left atrium of the heart.

Front

What is a control group in an experiment?

Back

The control group is the group that serves as the baseline for comparison in an experiment.

Front

What determines the differences in DNA among individuals?

Back

The differences in DNA among individuals are determined by the order of the nucleotides in the DNA strand.

Front

Which side of the heart pumps oxygen-rich blood?

Back

The left side of the heart pumps oxygen-rich blood to the rest of the body.

Front

What is algor mortis?

Back

Algor mortis is the cooling of body temperature after death.

Front

What is the role of the aorta in the circulatory system?

Back

The aorta carries oxygenated blood from the left ventricle to the rest of the body.

Front

Define rigor mortis.

Back

Rigor mortis is the stiffening of the muscles after death due to chemical changes.

Front

What is the purpose of the vena cava?

Back

The vena cava carries deoxygenated blood from the body back to the right atrium of the heart.

Front

What is the difference between independent and dependent variables?

Back

The independent variable is manipulated in an experiment, while the dependent variable is measured.

Front

What is livor mortis?

Back

Livor mortis is the pooling of blood in the lowest parts of the body after death, causing a purplish discoloration.