Question 1

Which statement helps categorize a disease as pandemic rather than epidemic?

Accepted Answer

The entire global population is affected by the disease.

Answer

The infection rate is higher than normally expected.

Answer

The disease has no available cure.

Answer

The disease is spread by multiple agents.

Question 2

Which substance is composed of more than one element?

Accepted Answer

steel

Answer

silver

Answer

aluminum

Answer

helium

Question 3

Which would best allow a species to survive environmental changes?

Accepted Answer

genetic diversity

Answer

similar physical features

Answer

low mutation rate

Answer

small population

Question 4

Potatoes in Ireland were introduced from South America. In 1845, a fungal disease causing rot in potatoes began to spread and damage most of the crop. Which statement is true?

Accepted Answer

The individual potato plants had relatively low genetic variation.

Answer

The individual potato plants had a high degree of genetic variation.

Answer

The potato plants were not adapted to the climate.

Question 5

Which best describes a result of a well-balanced diet?

Accepted Answer

regulation of blood sugar levels

Answer

accumulation of fat reserves

Answer

reduction in energy production during respiration

Answer

elevation of the heart rate

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