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While enzymatic hydrolysis proceeds, peristalsis moves the mixture of chyme and digestive juices along what?
[ "esophagus", "small intestine", "large intestine", "stomach" ]
B
SCiQ
In mammals, sound waves are collected by the external, cartilaginous part of the ear called the pinna, then travel through the auditory canal and cause vibration of the thin diaphragm called the tympanum or this?
Reception of Sound In mammals, sound waves are collected by the external, cartilaginous part of the ear called the pinna, then travel through the auditory canal and cause vibration of the thin diaphragm called the tympanum or ear drum, the innermost part of the outer ear (illustrated in Figure 36.13). Interior to the t...
[ "microphone drum", "head drum", "ear drum", "speaker drum" ]
C
SCiQ
Different types of home heating systems all function by producing what type of energy?
Types of home heating systems include hot-water, warm-air, and solar heating systems. All of them have the same basic function: producing thermal energy and transferring it to air throughout the house.
[ "electron", "thermal", "distinct", "natural" ]
B
SCiQ
What are groups of young stars loosely held together by gravity called?
Open clusters are groups of young stars loosely held together by gravity.
[ "constellations", "galaxies", "closed clusters", "open clusters" ]
D
SCiQ
Ice floats because it is less what than liquid water?
[ "dense", "warm", "gaseous", "heavy" ]
A
SCiQ
Plants supply, ultimately, most of the food eaten by terrestrial animals, along with what gas?
[ "nitrogen", "carbon dioxide", "hydrogen", "oxygen" ]
D
SCiQ
Surprisingly, where would you find the earth’s tallest mountains and deepest canyons?
Scientists have learned a lot about the ocean floor. For example, they know that Earth’s tallest mountains and deepest canyons are on the ocean floor. The major features on the ocean floor are described below. They are also shown in Figure below .
[ "Tibet", "taiga", "ocean floor", "rain forests" ]
C
SCiQ
What is the process in which many new species evolve in a short period of time to fill available niches called?
After a mass extinction, many habitats are no longer inhabited by organisms because they have gone extinct. With new habitats available, some species will adapt to the new environments. Evolutionary processes act rapidly during these times. Many new species evolve to fill those available habitats. The process in which ...
[ "adaptation", "spontaneous mutation", "learned behavior", "adaptive radiation" ]
D
SCiQ
Mixtures of materials called alloys contain at least one of what type of material?
Alloys are mixtures of materials, at least one of which is a metal.
[ "coal", "metal", "steel", "liquid" ]
B
SCiQ
Which type of energy is the energy of anything in motion?
Kinetic energy is the energy of anything in motion. Your muscles move your leg, your foot kicks the ball, and the ball gains kinetic energy ( Figure below ). The kinetic energy was converted from potential energy that was in your leg before the kick. The action of kicking the ball is energy changing forms. The same is ...
[ "physiological engergy", "residual engergy", "diffuse energy", "kinetic engergy" ]
D
SCiQ
What term is used to describe the energy reserve carbohydrate of animals?
Glycogen Glycogen is the energy reserve carbohydrate of animals. Practically all mammalian cells contain some stored carbohydrates in the form of glycogen, but it is especially abundant in the liver (4%–8% by weight of tissue) and in skeletal muscle cells (0.5%–1.0%). Like starch in plants, glycogen is found as granule...
[ "fructose", "glycogen", "sucrose", "lactose" ]
B
SCiQ
The total energy assimilated by an ecosystem in a give period is known as what?
[ "size primary production", "gross primary production", "median primary production", "mean primary production" ]
B
SCiQ