QUESTION: 149

Exhibit:

Using the chart and the information provided, what is the windchill at a wind speed of 25 mph and a temperature of 15° F?

-29° F
-25° F
-22° F
-17° F
-15° F

Answer(s): C

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The human body's endocrine system, which keeps the body in a healthy balance, consists of glands that release chemical substances called hormones into the bloodstream. The endocrine glands and the functions that they regulate are shown in the table below.

Many adults have some form of diabetes. Based on the information and table, which gland is primarily responsible for regulating blood sugar level?

pituitary gland
parathyroid gland
thyroid gland
pancreas
adrenal glands

Answer(s): D

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QUESTION: 151

Diseases can be categorized into two types: infectious and non-infectious. Infectious diseases can be transmitted from one person to another. Examples of infectious diseases are flu, measles, and cold. Non-infectious diseases include cancer, heart disease, and diabetes.

Which conclusion can best be drawn from the graph?

The AIDS epidemic began in the 1970s.
Deaths from infectious diseases have decreased over time.
The number of cancer deaths was the same in 1970 as in 1990.
Effective treatments for most diseases occurred between 1910 and 1990.
Food safety improvements began in the 1970s.

Answer(s): B

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QUESTION: 152

A clear container of hydrogen peroxide breaks down to form water and oxygen in approximately one month. When an enzyme known as catalase is added to hydrogen peroxide, water and oxygen are formed almost immediately.
Which of the following actions explains why this effect of catalase is typical of an enzyme?

acts as a preservative
reacts with protein
forms water and chlorine gas
is used up in the reaction
changes the rate of the reaction

Answer(s): E

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Free GED SCIENCE Exam Braindumps (page: 38)

QUESTION: 149

QUESTION: 150

QUESTION: 151

QUESTION: 152