Answer the following question given this paragraph: Most musical instruments use resonance to amplify the sound waves and make the sounds louder. Resonance occurs when an object vibrates in response to sound waves of a certain frequency. In a musical instrument such as a guitar, the whole instrument and the air inside it may vibrate when a single string is plucked. This causes constructive interference with the sound waves, which increases their amplitude. Q: What happens do the sound during a resonance? Choices: - it becomes quieter - it dissipates - it echoes - amplified, it becomes louder A:
amplified, it becomes louder
Answer the following question given this paragraph: Some modern seed plants are gymnosperms that produce seeds in cones. Q: What term is used to describe modern seed plants that produce seeds in cones? Choices: - angiosperms - deciduous - perennials - gymnosperms A:
gymnosperms
Q: Answer the following question given this paragraph: Q: What can increase the occurance of earthquakes? Choices: - three plates sliding - plates breaking - plates rupturing - two plates sliding A:
A: two plates sliding
Question: Answer the following question given this paragraph: Figure 42.10 An antigen is a macromolecule that reacts with components of the immune system. A given antigen may contain several motifs that are recognized by immune cells. Each motif is an epitope. In this figure, the entire structure is an antigen, and the orange, salmon and green components projecting from it represent potential epitopes. Q: An antigen is a macromolecule that reacts with components of what? Choices: - circulatory system - pulmonary system - digestion system - immune system A:
Answer: immune system
*Question*
Answer the following question given this paragraph: Q: Thousands of receptor cells that detect the sex attractant equip each filament of what structure? Choices: - optic nerve - flagella - molecule - antenna A:
**Answer**
antenna
(Question)
Answer the following question given this paragraph: Weight measures the force of gravity pulling downward on an object. The SI unit for weight, like other forces, is the Newton (N). On Earth, a mass of 1 kilogram has a weight of about 10 Newtons because of the pull of Earth's gravity. On the moon, which has less gravity, the same mass would weigh less. Weight is measured with a scale, like the spring scale shown in the Figure below . The scale measures the force with which gravity pulls an object downward. To delve a little deeper into weight and gravity, watch this video:. Q: What is the force that pulls downward on an object and is measured by weight? Choices: - strength - work - light - gravity A:
(Answer)
gravity