Q: Earthquakes and visible light are examples of what? Read this paragraph and choose the correct option from the provided answers: Introduction to Oscillatory Motion and Waves What do an ocean buoy, a child in a swing, the cone inside a speaker, a guitar, atoms in a crystal, the motion of chest cavities, and the beating of hearts all have in common? They all oscillate-that is, they move back and forth between two points. Many systems oscillate, and they have certain characteristics in common. All oscillations involve force and energy. You push a child in a swing to get the motion started. The energy of atoms vibrating in a crystal can be increased with heat. You put energy into a guitar string when you pluck it. Some oscillations create waves. A guitar creates sound waves. You can make water waves in a swimming pool by slapping the water with your hand. You can no doubt think of other types of waves. Some, such as water waves, are visible. Some, such as sound waves, are not. But every wave is a disturbance that moves from its source and carries energy. Other examples of waves include earthquakes and visible light. Even subatomic particles, such as electrons, can behave like waves. By studying oscillatory motion and waves, we shall find that a small number of underlying principles describe all of them and that wave phenomena are more common than you have ever imagined. We begin by studying the type of force that underlies the simplest oscillations and waves. We will then expand our exploration of oscillatory motion and waves to include concepts such as simple harmonic motion, uniform circular motion, and damped harmonic motion. Finally, we will explore what happens when two or more waves share the same space, in the phenomena known as superposition and interference. Choices: - geological phenomena - currents - winds - waves A:
waves

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Q: What is the name of the outer part of the adrenal gland located above the kidneys? Read this paragraph and choose the correct option from the provided answers: The two adrenal glands are located above the kidneys. Each gland has an inner and outer part. The outer part, called the cortex, secretes hormones such as cortisol, which helps the body deal with stress, and aldosterone, which helps regulate the balance of minerals in the body. The inner part of each adrenal gland, called the medulla, secretes fight-or-flight hormones such as adrenaline, which prepare the body to respond to emergencies. For example, adrenaline increases the amount of oxygen and glucose going to the muscles. You can see an animation of this response at the link below. Choices: - nucleus - mitochondria - spleen - cortex A:
(Answer)
cortex

Ques: Q: In science, what is a bit of information that is true? Read this paragraph and choose the correct option from the provided answers: Scientists usually begin an investigation with facts. A fact is a bit of information that is true. Facts come from data collected from observations. Facts can also come from experiments that have been run. Data is factual information that results from an investigation. Facts and data are not subject to opinion or bias. An opinion is someone's subjective view or position on a subject. Choices: - lie - theory - falsehood - a fact A:
Ans: a fact

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Q: What is produced when an egg is fertilized by a sperm in a fallopian tube? Read this paragraph and choose the correct option from the provided answers: Fertilization of an egg by a sperm in a fallopian tube produces a zygote. The zygote develops into a blastocyst, which implants in the uterus. The offspring then goes through the embryonic and fetal stages. The placenta supports the needs of the developing embryo and fetus. Birth generally occurs at about 38 months after fertilization. Choices: - uterus - fetus - ovaries - zygote A:
(A).
zygote

Ques:Q: What is a measure of the average amount of energy of motion, or kinetic energy, a system contains called? Read this paragraph and choose the correct option from the provided answers: There are other units in chemistry that are important, and we will cover others in the course of the entire book. One of the fundamental quantities in science is temperature. Temperature is a measure of the average amount of energy of motion, or kinetic energy, a system contains. Temperatures are expressed using scales that use units called degrees, and there are several temperature scales in use. In the United States, the commonly used temperature scale is the Fahrenheit scale (symbolized by F and spoken as "degrees Fahrenheit"). On this scale, the freezing point of liquid water (the temperature at which liquid water turns to solid ice) is 32F, and the boiling point of water (the temperature at which liquid water turns to steam) is 212F. Science also uses other scales to express temperature. The Celsius scale (symbolized by C and spoken as "degrees Celsius") is a temperature scale where 0C is the freezing point of water and 100C is the boiling point of water; the scale is divided into 100 divisions between these two landmarks and extended higher and lower. By comparing the Fahrenheit and Celsius scales, a conversion between the two scales can be determined: C=(F32)59 Saylor URL: http://www. saylor. org/books. Choices: - size - variation - precipitation - temperature A:

Ans:temperature

Q: What is the term for coiled structures made of dna and proteins? Read this paragraph and choose the correct option from the provided answers: Chromosomes are coiled structures made of DNA and proteins. Chromosomes are the form of the genetic material of a cell during cell division. During other phases of the cell cycle, DNA is not coiled into chromosomes. Instead, it exists as a grainy material called chromatin . Choices: - neutrons - nodes - platelets - chromosomes A:
chromosomes