The part of the earth's air, soil, and water where life is found is called the

Groups of different species living together in a particular place with a potential for interacting with one another is called

Which of the following is not a type of consumer?

Organisms that feed only on plants are called

The very necessary process of breaking down the dead bodies of organisms is a function of

Complex networks of interconnected food chains are

The typical percentage of high quality energy loss in transfers from one trophic level to the next is about

If grass stores 1,000 energy units received from the sun, the ecological efficiency of the ecosystem is 10%, and the trophic levels are grass → cow → human, how many units of energy does the human receive of the original 1,000 units?

Some individuals in a population have genetic traits that are favored by environmental conditions because the trait enhance their ability to survive and produce offspring, a process called

Mutations are not caused by which of the following?

For natural selection to occur, an adaptive trait

Biological evolution by natural selection is when genes ____, individuals ____, and populations ____.

From a scientific point of view, which of the following is true?

Biodiversity is believed to be the result of the interaction between

The role a species plays in its ecosystem is the

A species with a broad niche is considered a(n)

Which of the following would not be considered a generalist species?

Which of the following is another name for a nonnative species?

A species in an ecosystem that plays a central role in the health of that ecosystem, and whose removal may cause the collapse of the ecosystem, is called a(n)

A species in an ecosystem that shapes communities by creating and enhancing habitats in ways that benefit other species is called

If multiple species find themselves competing for the same resource, the competition can be reduced by which of the following?

Which of the following is said to occur when an interaction benefits one species but has little, if any, effect on the other?

Which of the following is said to occur when members of two or more species interact to gain access to the same limited resources?

Which of the following is not a method predators use to capture prey?

Which of the following is not a method prey species use to avoid capture?

A group of interbreeding individuals of the same species in the same geographic region is called a(n)

Fundamental types of matter that have unique sets of properties and can not be broken down into simpler substances by chemical means are called

Protons, neutrons, and electrons are all

The measurement of the concentration of hydrogen ions compared to the concentration of hydroxide ions in a solution is called

The first law of thermodynamics tells us that

The matter and energy laws tell us that we can recycle

The hydrologic cycle is driven primarily by

Which of the following is a primary link between photosynthesis and aerobic respiration?

Nitrogen is a major component of all of the following except

Which of the following is not a part of the phosphorus cycle?

Sulfur is added to the atmosphere in all the following ways except