Week 7 Test Answers

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Which major environmental factors can affect health?

genetics and obesity

poor water quality and obesity

poor air and water quality

genetics and poor air quality

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Which is a true statement about air quality?

Good air quality is shown by high levels of smog.

Bacteria is a major cause of poor air quality.

Water treatment plants measure the air quality.

The EPA measures air pollution levels daily.

Which is characterized by uncontrolled growth of abnormal cells?

diabetes

obesity

cancer

heart disease

Which discovery did Gregor Mendel make?

Traits are inherited independently of each other.

Traits are inherited as a tetrad.

Traits are inherited as homologous pairs.

Traits are inherited as a set, from one parent.

Which of the steps in this sequence of events is an example of mitosis at work?

A baseball hits the arm of a baseball player.

The player reacts quickly grabbing his arm.

A bruise forms where the ball hit the arm.

The bruise slowly disappears as the arm heals.

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