Answer the following question given this paragraph: Buffers are solutions that maintain a relatively constant pH when an acid or a base is added. They therefore protect, or "buffer," other molecules in solution from the effects of the added acid or base. Buffers contain either a weak acid (HA) and its conjugate base (A) or a weak base (B) and its conjugate acid (BH+), and they are critically important for the proper functioning of biological systems. In fact, every biological fluid is buffered to maintain its physiological pH. Q: What are solutions that maintain a relatively constant ph when an acid or a base is added? Choices: - gases - water - liquids - buffer A:
buffer
(Question)
Answer the following question given this paragraph: ; The efficiency equals the output power divided by the input power. Q: What equals the output power divided by the input power? Choices: - output - potential - inertia - efficiency A:
(Answer)
efficiency
Ques: Answer the following question given this paragraph: layers: mucosa, submucosa, muscularis, and serosa. The enteric nervous system provides intrinsic innervation, and the autonomic nervous system provides extrinsic innervation. Q: The enteric nervous system provides intrinsic innervation, and the autonomic nervous system provides this? Choices: - arise innervation - complex innervation - autonomic innervation - extrinsic innervation A:
Ans: extrinsic innervation
(Q).
Answer the following question given this paragraph: Living things that cause human diseases include bacteria, fungi, and protozoa. Most infectious diseases caused by these organisms can be cured with medicines. For example, medicines called antibiotics can cure most diseases caused by bacteria. Bacteria are one-celled organisms without a nucleus. Although most bacteria are harmless, some cause diseases. Q: Most diseases caused by bacteria can be cured by which medicines? Choices: - hydroxides - antioxidants - inhibitors - antibiotics A:
(A).
antibiotics
Ques:Answer the following question given this paragraph: Green light has a higher frequency than microwaves. It is possible to calculate it, but since the speed of an electromagnetic wave is constant we know that waves with higher wavelengths must have a lower frequency based on the wave equation. Q: What of a electromagnetic wave can be calculated using the wave equation due to their speed always being constant? Choices: - oscillation - resonance - sound - frequency A:

Ans:frequency
Ques: Answer the following question given this paragraph: Some bacteria depend on other organisms for survival. For example, some bacteria live in the roots of legumes, such as pea plants ( Figure below ). The bacteria turn nitrogen-containing molecules into nitrogen that the plant can use. Meanwhile, the root provides nutrients to the bacteria. In this relationship, both the bacteria and the plant benefit, so it is known as a mutualism . Q: In biology, a relationship that benefits both entities is known as what? Choices: - naturalism - altruism - predatory - mutualism A:
Ans:
mutualism