Science TEAS Practice Test

Question 1 of 5

What is the pathway of oxygenated blood from the lungs?

A. Lungs to the left atrium, through the mitral valve into the left ventricle, pumped into the aorta upon contraction, then dispersed to tissues via a network of arteries and capillaries B. Lungs to the right atrium, through the mitral valve into the right ventricle, pumped into the aorta upon contraction, then dispersed to tissues via a network of arteries and veins C. Lungs to the left atrium, directly to the right aorta, then dispersed to tissues via a network of arteries and capillaries D. Lungs to the left atrium, through the septal valve, stored in the left ventricles, then dispersed to tissues via a network of arteries and capillaries

Question 2 of 5

Which statement below best describes the process of condensation?

A. Condensation is the process of changing from a gas to a liquid. B. Condensation is the process of changing from a liquid to a gas. C. Condensation is the process of changing from a solid to a liquid. D. Condensation is the process of changing from a solid to a gas.

Question 3 of 5

A researcher is studying the response of bacteria to a certain chemical. In three experiments, the bacteria swim towards the chemical, and in one experiment, the bacteria swim away from it. What would be the most appropriate next step for the researcher?

A. Report only the first three experiments. B. Report all the experiments, but refrain from making any conclusions. C. Repeat the experiment several more times and apply a statistical analysis to the data. D. Repeat the experiment, adding a new chemical to determine its effect on the bacteria.

Question 4 of 5

The average life expectancy at birth in the United States at the beginning of the 21st century was about 75 years. The average life expectancy at birth in the middle of the 19th century was only about 40 years. Which of the following factors are likely to have contributed to the longer life expectancy in the 21st century? (Select the one that does not apply)

A. The human body has evolved to become more resilient to its environment. B. There have been numerous advances in medical technology and treatments. C. Higher standards of basic cleanliness have helped people avoid illness. D. The creation of vaccines has nearly eliminated certain diseases that were once deadly.

Question 5 of 5

When a biologist describes the physical and visible expression of a genetic trait, which of the following is being referred to?

A. Phenotype B. Allele C. Gamete D. Genotype

Science TEAS Practice Test

Skildor

ATI TEAS 7

ATI TEAS 7