Answer the following question given this paragraph: Q: Plants have a touch response known as what? Choices: - trichina - pollenation - photosynthesis - thigmotropism A:
thigmotropism
Answer the following question given this paragraph: Since eddy currents and magnetic damping occur only in conductors, recycling centers can use magnets to separate metals from other materials. Trash is dumped in batches down a ramp, beneath which lies a powerful magnet. Conductors in the trash are slowed by magnetic damping while nonmetals in the trash move on, separating from the metals. (See Figure 23.17. ) This works for all metals, not just ferromagnetic ones. A magnet can separate out the ferromagnetic materials alone by acting on stationary trash. Q: Since eddy currents and magnetic damping occur only in conductors, recycling centers can use these to separate metals from other materials? Choices: - particles - cranes - alloys - magnets A:
magnets
Q: Answer the following question given this paragraph: Q: What circulates with the blood or hemolymph and are often contained within specialized cells Choices: - structural pigments - muscular pigments - fat pigments - respiratory pigments A:
A: respiratory pigments
Question: Answer the following question given this paragraph: Plants can also reproduce sexually, but their reproductive organs are different from animals' gonads. Plants that have flowers have their reproductive parts in the flower. The sperm is contained in the pollen, while the egg is contained in the ovary, deep within the flower. The sperm can reach the egg two different ways:. Q: What reproductive part is stored in a plant's pollen? Choices: - the gamete - the mimic - the egg - the sperm A:
Answer: the sperm
*Question*
Answer the following question given this paragraph: An earthquake is sudden ground movement. This movement is caused by the sudden release of the energy stored in rocks. An earthquake happens when so much stress builds up in the rocks that the rocks break. An earthquake's energy is transmitted by seismic waves. Q: What sudden ground movement is caused by the sudden release of the energy stored in rocks, which is transmitted in seismic waves? Choices: - eruption - sandstorm - quicksand - earthquake A:
**Answer**
earthquake
Q: 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? Choices: - laser - radiation - extrasound - ultrasound A:
A: ultrasound