*Question*
Answer the following question given this paragraph: The prostate gland secretes a fluid that mixes with sperm to help form semen. The prostate gland is located beneath the bladder. Semen is a "milky" liquid that carries sperm through the urethra and out of the body. In addition to sperm cells, semen contains sugars (fructose) which provide energy to the sperm cells, and enzymes and other substances which help the sperm survive. Q: The prostate gland secretes a fluid that mixes with sperm to help form what? Choices: - testosterone - hormone - urine - semen A:
**Answer**
semen

*Question*
Answer the following question given this paragraph: where is the number of moles of gas and is a constant. Avogadro's law is in evidence whenever you blow up a balloon. The volume of the balloon increases as you add moles of gas to the balloon by blowing it up. Q: What happens to the volume of a balloon when you add moles of gas to it by blowing up? Choices: - changes randomly - decreases - stays the same - increases A:
**Answer**
increases

*Question*
Answer the following question given this paragraph: Infectious diseases caused by viruses include the common cold, influenza, and acquired immunodeficiency syndrome (AIDS) and are among the most significant health problems in our society. Viruses are infectious agents far smaller and simpler than bacteria that are composed of a tightly packed central core of nucleic acids enclosed in a protective shell. The shell consists of layers of one or more proteins and may also have lipid or carbohydrate molecules on the surface. Because of their simplicity, viruses must invade the cells of other organisms to be able to reproduce. Viruses are visible only under an electron microscope. They come in a variety of shapes, ranging from spherical to rod shaped. The fact that they contain either deoxyribonucleic acid (DNA) or ribonucleic acid (RNA)but never bothallows them to be divided into two major classes: DNA viruses and RNA viruses (Figure 19.17 "Viruses"). Figure 19.17 Viruses. Q: Culprits in the common cold and aids, what infectious agents are far smaller and simpler than bacteria? Choices: - poisons - pathogens - parasites - viruses A:
**Answer**
viruses

*Question*
Answer the following question given this paragraph: 31 Respiratory system In humans and other animals, for example, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles. Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians even the skin plays a vital role in gas exchange. Plants also have respiratory systems but the directionality of gas exchange can be opposite to that in animals. The respiratory system in plants also includes anatomical features such as holes on the undersides of leaves known as stomata. In mammals, the diaphragm divides the body cavity into the abdominal cavity: contains the viscera (e. , stomach and intestines). Q: The airway and the lungs are part of what organ system? Choices: - coronary - pulmonary - digestive - respiratory A:
**Answer**
respiratory