- 18.1: Place these levels of ecological study in order from the least to t...
- 18.2: Name several abiotic factors that might affect the community of org...
- 18.3: The formation of goose bumps on your skin in cold weather is an exa...
- 18.4: Which of the following sea creatures might be described as a pelagi...
- 18.5: Identify the following biomes on the graph below: tundra, coniferou...
- 18.6: We are on a coastal hillside on a hot, dry summer day among evergre...
- 18.7: What three abiotic factors account for the rarity of trees in arcti...
- 18.8: What human activity is responsible for the greatest amount of defor...
- 18.9: What is the greenhouse effect? How is the greenhouse effect related...
- 18.10: The recent increase in atmospheric CO2 concentration is mainly a re...
- 18.11: What populations of organisms are most likely to survive climate ch...
- 18.12: Design a laboratory experiment to measure the effect of water tempe...
- 18.13: Interpreting Data This graph shows average monthly temperature and ...
- 18.14: Some people are not convinced that human-induced global climate cha...
- 18.15: Research your countrys per capita (per person) carbon emissions. Ca...
- 18.16: In the summer of 2007, unprecedented drought conditions brought the...
Solutions for Chapter 18: An Introduction to Ecology and the Biosphere
Full solutions for Campbell Essential Biology with Physiology | 4th Edition
Cosmological red shift
Changes in the spectra of galaxies that indicate they are moving away from the Milky Way as the result of the expansion of space.
A circulation pattern characterized by a light wind blowing into a city from the surrounding countryside. It is best developed on clear and otherwise calm nights when the urban heat island is most pronounced.
A principle of relative dating. A rock or fault is younger than any rock (or fault) through which it cuts.
The portion of seafloor that lies between the continental margin and the oceanic ridge system. This region comprises almost 30 percent of Earth’s surface.
A region where the rigid plates are moving apart, typified by the midoceanic ridges.
See Bright-line spectrum
A major division on the geologic calendar; eras are divided into shorter units called periods.
An undulating layer of till deposited as the ice front retreats.
The resistance a mineral offers to scratching.
A tropical cyclonic storm having winds in excess of 119 kilometers (74 miles) per hour.
Law of conservation of angular momentum
The product of the velocity of an object around a center of rotation (axis), and the distance squared of the object from the axis is constant.
The part of the mantle that extends from the core–mantle boundary to a depth of 660 kilometers.
A number given to a celestial object to express its relative brightness.
Many meteors appearing in the sky caused when Earth intercepts a swarm of meteoritic particles.
A layer beneath the mantle about 2,200 kilometers (1,364 miles) thick that has the properties of a liquid.
A volcanic cone that forms on the flank of a larger volcano.
The stormy frontal zone separating air masses of polar origin from air masses of tropical origin.
The solstice that occurs on June 21–22 in the Northern Hemisphere and on December 21–22 in the Southern Hemisphere.
A warning issued for areas of about 65,000 square kilometers (25,000 square miles), indicating that conditions are such that tornadoes may develop; it is intended to alert people to the possibility of tornadoes.
The lowermost layer of the atmosphere. It is generally characterized by a decrease in temperature with height.