Answer the following question given this paragraph: On the left side of the electromagnetic spectrum diagram are radio waves and microwaves. Radio waves have the longest wavelengths and lowest frequencies of all electromagnetic waves. They also have the least amount of energy. Q: Of all the electromagnetic waves, which have the lowest frequencies? Choices: - X-rays - ultraviolet rays - gamma rays - radio waves A:
radio waves
(Question)
Answer the following question given this paragraph: The midpiece of the sperm is packed with mitochondria. Mitochondria are organelles in cells that produce energy. Sperm use the energy in the midpiece to move. Q: What is the midpiece of sperm packed with? Choices: - protein - glucose - urine - mitochondria A:
(Answer)
mitochondria
Ques: Answer the following question given this paragraph: Gibbs free energy values can be used to determine equilibrium constants. Q: Gibbs free energy values can be used to determine what? Choices: - equilibrium differentials - prime constants - equal lines - equilibrium constants A:
Ans: equilibrium constants
(Q).
Answer the following question given this paragraph: Carrier proteins bind and carry the molecules across the cell membrane. These proteins bind a molecule on one side of the membrane, change shape as they carry the molecule across the membrane, and deposit the molecule on the other side of the membrane. Even though a protein is involved in both these methods of transport, neither method requires energy. Therefore these are still types of passive transport. Q: Carrier proteins bind and carry the molecules across what cell structure? Choices: - nucleus - cell wall - plastid - cell membrane A:
(A).
cell membrane
Ques:Answer the following question given this paragraph: Blood travels through the bicuspid valve to the left atrium. Both the aortic and the pulmonary valves are semilunar valves. The mitral valve is an atrioventricular valve. Figure 40.17 Varicose veins are veins that become enlarged because the valves no longer close properly, allowing blood to flow backward. Varicose veins are often most prominent on the legs. Why do you think this is the case?. Q: Varicose veins are veins that become enlarged because the valves no longer do this? Choices: - shrink properly - open properly - enlarge properly - close properly A:

Ans:close properly
Answer the following question given this paragraph: The strength of an acid depends on the concentration of hydrogen ions it produces when dissolved in water. A stronger acid produces a greater concentration of ions than a weaker acid. For example, when hydrogen chloride is added to water, all of it breaks down into H + and Cl - ions. Therefore, it is a strong acid. On the other hand, only about 1 percent of acetic acid breaks down into ions, so it is a weak acid. Q: The strength of what depends on the concentration of hydrogen ions it produces when dissolved in water? Choices: - the solution - electricity - the base - acid A:
acid