Q: What do you call a device that produces a very focused beam of visible light of just one wavelength and color? Read this paragraph and choose the correct option from the provided answers: Did you ever see a cat chase after a laser light, like the one in Figure below ? A laser is a device that produces a very focused beam of visible light of just one wavelength and color. Waves of laser light are synchronized so the crests and troughs of the waves line up. The diagram in Figure below shows why a beam of laser light is so focused compared with ordinary light from a flashlight. Choices: - optical diffuser - fusion relay - light meter - laser A:
laser

Q: What do corals secrete that builds up to become a coral reef? Read this paragraph and choose the correct option from the provided answers: Cnidarians include jellyfish and corals. They are aquatic invertebrates. They have tissues and radial symmetry. They also have tentacles with stingers. There are two cnidarian body plans: the polyp and the medusa. They differ in several ways. Many corals secrete an exoskeleton that builds up to become a coral reef. Choices: - membrane - mucous - scales - exoskeleton A:
exoskeleton

Q: Q: Heterotrophic organisms use organic compounds, usually from other organisms, as a source of what basic element of life? Read this paragraph and choose the correct option from the provided answers: Heterotrophic organisms use organic compounds, usually from other organisms, as carbon sources. Choices: - oxygen - monoxide - hydrogen - carbon A:
A: carbon

Question: Q: What is the term used to describe the liquid that moves through the vessels and includes plasma and the cells and sell fragments called platelets? Read this paragraph and choose the correct option from the provided answers: 40.2 | Components of the Blood By the end of this section, you will be able to: List the basic components of the blood Compare red and white blood cells Describe blood plasma and serum Hemoglobin is responsible for distributing oxygen, and to a lesser extent, carbon dioxide, throughout the circulatory systems of humans, vertebrates, and many invertebrates. The blood is more than the proteins, though. Blood is actually a term used to describe the liquid that moves through the vessels and includes plasma (the liquid portion, which contains water, proteins, salts, lipids, and glucose) and the cells (red and white cells) and cell fragments called platelets. Blood plasma is actually the dominant component of blood and contains the water, proteins, electrolytes, lipids, and glucose. The cells are responsible for carrying the gases (red cells) and immune the response (white). The platelets are responsible for blood clotting. Interstitial fluid that surrounds cells is separate from the blood, but in hemolymph, they are combined. In humans, cellular components make up approximately 45 percent of the blood and the liquid plasma 55 percent. Blood is 20 percent of a person's extracellular fluid and eight percent of weight. Choices: - water - pus - bacteria - blood A:
Answer: blood

*Question*
Q: What 3 types of friction occur between solid surfaces? Read this paragraph and choose the correct option from the provided answers: Friction is the force that opposes motion between any surfaces that are in contact. There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Fluid friction occurs in liquids and gases. All four types of friction are described below. You can see a video demonstration of the different types at this URL:. Choices: - static , arching , rolling - static,desending,sliding - static , ascending , rolling - static, sliding, rolling A:
**Answer**
static, sliding, rolling

(Question)
Q: What is the middle layer that hair pass through before exiting at the surface of the skin? Read this paragraph and choose the correct option from the provided answers: Hair follicles are the structures where hairs originate. Hairs grow out of follicles, pass through the epidermis, and exit at the surface of the skin. Choices: - epithelial tissue - cuticle - dermis - epidermis A:
(Answer)
epidermis