SCIENCE MODULE

Which state has the most tornadoes?

Which state has the second highest number of “killer” tornadoes?

Which state has the most deaths per 10,000 square miles?

The state of Florida is third in which category?

Which substance in green tea helps prevent some cancers from forming?

Which process is similar to the rusting of metal?

Which type of tea is partially oxidized?

What is the best reason for why green tea does not go through the oxidation process

In 1949, a study of heart disease included 5,137 adults: 2,292 men and 2,845 women. All the individuals were 49 to 70 years of age, and none showed any signs of coronary artery disease. After 14-16 years of careful follow-up, it was found that:

I. 151 men and 37 women showed evidence of coronary artery disease that would account for a heart attack.
II. 102 men and 18 women died of coronary artery disease before they reached the age of 65.
III. 58 percent of the men and 39 percent of the women died within one hour of having a heart attack.
IV. For both men and women, sudden death was more likely if they were under age 55 at the time of the attack.
V. Not all heart attacks produce symptoms. A considerable number of men and women had a myocardial infarction (heart muscle damage) without knowing it. Of those who suffered such “silent coronaries”; 22 percent of the men and 35 percent of the women did not know muscle damage had occurred.
In the design of this study, the researchers made sure that

As explained in the study, a person who has a “silent coronary”

A woman who is 53 years old has a heart attack. Compared with a man, she is more likely to

Which conclusion is consistent with the results of the study?

Based on the results of this experiment, of the people who died of coronary artery disease before age 65

A group of 1000 men and 1200 women between the ages of 50 and 65 are to be studied for coronary artery disease. Based on the original study, which of the following results could be predicted most reliably?

A chemistry student placed a strip of blue litmus paper and a strip of pink litmus paper in a glass dish. Then she added a drop of dilute sulfuric acid to each strip of litmus paper. She observed that the blue litmus paper turned pink, but the pink litmus paper did not change color. Next she placed a drop of sodium hydroxide (NaOH) on other strips of blue and pink litmus paper. This time, the pink litmus
paper turned blue, but the blue litmus paper did not change. Finally, she put a drop of distilled water on strips of blue and pink litmus paper. Neither strip changed color. She repeated the tests several times with the same results. The student concluded that acids turn blue litmus paper pink; bases, such as sodium hydroxide, turn pink litmus paper blue. As water did not affect either pink or blue litmus paper, she reasoned that water was not an acid or a base, but a neutral substance.
Keeping these results in mind, the student poured a little sodium hydroxide into a beaker containing pink and blue litmus paper. Then she added hydrochloric acid (HCl) drop by drop until the solution became neutral. She determined that a new, neutral substance had formed in the beaker. The substance was table salt, or sodium chloride (NaCl), which is one of many salts formed from an acid and a base.
If a drop of an unknown substance turns blue litmus paper pink, but does not change pink litmus paper, the substance is a(n):

In the presence of potassium hydroxide (KOH):

When strips of blue and pink litmus paper are put in a beaker filled with a clear solution, neither litmus paper changes color. The solution:

In another experiment, the student added hydrochloric acid drop by drop to a solution of sodium hydroxide containing strips of originally blue and originally pink litmus paper. As she continued adding acid, the originally:

Based on the results of this experiment, a salt would be formed when:

In setting up an aquarium, several factors must be considered before introducing fish. Which of the following factors could be tested using litmus paper?

The complex behavior of the poor-sighted, three-spined male stickleback fish has been studied extensively as a model of species behavior in courtship and mating. After a male has migrated to a suitable spot, he builds a spawning nest of sand and sediment. In courting, he performs a special “zigzag” dance. The female then follows the male to the nest where she spawns and he fertilizes the spawned eggs. Also, male sticklebacks have been shown to exhibit territorial behaviors. A biologist performed three experiments to learn more about the behavior of the stickleback.
Experiment 1
Tank 1 and Tank 2 are set up with identical conditions and one male stickleback is placed in each tank. Both fish build nests in their respective tanks. The male from Tank 1 is removed from his tank and is replaced with an egg-laden female; the male from Tank 2 is removed from his tank and is introduced into Tank 1. In Tank 1, the male does not perform the zigzag dance and no spawning occurs. The male retreats to a corner of the tank.
Experiment 2
A male stickleback in an aquarium builds his nest. A fat, round male is introduced into the environment. The original male performs the zigzag dance and attempts to lead the round male to the nest. The round male refuses and begins to flap his fins and swim in circles. The first male then begins to flap his fins, circle his nest, and occasionally prod the other fish to a far corner of the tank.
Experiment 3
A small, flat-shaped female is introduced into a tank where a male has built a nest. The male circles the female a few times, and then retreats to a corner of the tank.
The experimental data would support the hypothesis that the purpose of the male stickleback’s mating dance is to:

Based on observations from the above experiments, which factor initially stimulates the male to do the zigzag dance?

Which experiment supports the hypothesis that the male exhibits territorial behavior

To further investigate the territorial behavior of the stickle back, the biologist should vary which of the following factors in Experiment 2?

To clarify the results of Experiment 1, the biologist should set up which of the following test situations?

A male stickleback has been established in an aquarium and has built a nest. If one egg-laden female and several flat-shaped male sticklebacks are placed in the tank, one would most likely observe:

When the chromosomes line up in mitosis this is known as which phase?

Which cellular organelle contains enzymes that are considered digestive?

Organs repair themselves through a process of?

Which of the following is considered a model for enzyme action?

Which of the following statements about enzymes is not true?

Which of the following statements about prostaglandins is not true?

Cholesterol that is known as (LDL) stands for:

Hardening of the arteries is known as:

The top number on a blood pressure reading indicates:

Litmus paper that is blue will turn/stay _____ in the presence of a strong base.

Breathing properly requires the presence of what compound that affects surface tension of alveoli in the lungs?

Which of the following is not considered a function of the kidneys?

The functional unit of the kidney is known as?

Which of the following is not considered a characteristic or property of a gas?

Liquids that evaporate quickly are known as _____ liquids.

High frequency sound waves are known as:

What anatomical structure connects the stomach and the mouth?

Which of the following is considered a component of lipids?

Blood enters the lungs from which chamber of the heart?

Excessive consumption of alcohol is most likely to damage which organ of the body over a long period of time?

Animals that eat meat almost exclusively are known as:

The physical expressions of a gene are known as an organism’s:

Which of the following is another word for the kneecap in the human body?

Which of the following describes the shoulder joint?