Answer the following question given this paragraph: Any sound with a frequency above 20,000 Hz (or 20 kHz)that is, above the highest audible frequencyis defined to be ultrasound. In practice, it is possible to create ultrasound frequencies up to more than a gigahertz. (Higher frequencies are difficult to create; furthermore, they propagate poorly because they are very strongly absorbed. ) Ultrasound has a tremendous number of applications, which range from burglar alarms to use in cleaning delicate objects to the guidance systems of bats. We begin our discussion of ultrasound with some of its applications in medicine, in which it is used extensively both for diagnosis and for therapy. Characteristics of Ultrasound The characteristics of ultrasound, such as frequency and intensity, are wave properties common to all types of waves. Ultrasound also has a wavelength that limits the fineness of detail it can detect. This characteristic is true of all waves. We can never observe details significantly smaller than the wavelength of our probe; for example, we will never see individual atoms with visible light, because the atoms are so small compared with the wavelength of light. Q: Any sound with a frequency above the highest audible frequency is defined as what, a phenomenon useful in medical diagnosis and therapy? A:

OPTIONS:
- laser
- radiation
- extrasound
- ultrasound

Answer: ultrasound

Problem: OPTIONS:
- pathogens
- algae
- proteins
- bacteria
Q: Answer the following question given this paragraph: The protist wraps around its prey, which is usually bacteria. Q: What is usually the prey of a protist? A:
Answer: bacteria

Problem:OPTIONS:
- cutworms
- leeches
- hookworms
- pinworms

Answer the following question given this paragraph: Tiny pinworms are the most common roundworm parasites of people in the U. S. In some areas, as many as one out of three children are infected. Humans become infected when they ingest the nearly microscopic pinworm eggs. The eggs hatch and develop into adults in the host's digestive tract. Adults lay eggs that pass out of the host's body to continue the cycle. Pinworms have a fairly simple life cycle with only one host. Q: What are the most common roundworm parasites of people in the u. s.? A:
****
A: pinworms

Answer the following question given this paragraph: Carbohydrates, proteins, and nucleic acids are large molecules (macromolecules) built from smaller molecules (monomers) through dehydration reactions. In a dehydration reaction, water is removed as two monomers are joined together. Q: In a dehydration reaction, what is removed as two monomers are joined together? A:
OPTIONS:
- carbon
- air
- nitrogen
- water
water

Answer the following question given this paragraph: The process of protein synthesis is summarized in the Figure below . DNA produces an RNA template that directs the amino acids to be introduced into the growing protein chain in the proper sequence. A specific transfer RNA attaches to each amino acid and brings it to the RNA for incorporation. Q: What directs the amino acids to be introduced into the growing protein chain in the proper sequence? A:
OPTIONS:
- organism template
- gene template
- organelle template
- rna template

Answer: rna template

input with options: Answer the following question given this paragraph: Alkali metals are all solids at room temperature. Q: What form do alkali metals take at room temperature? A:
OPTIONS:
- liquid
- gas
- compound
- solid
output:
solid