A.   logiistic growth

B.   density-dependent

C.   density-independent

D.   exponential growth

A.   Seeds are eaten by a tufted titmouse, the titmouse is eaten by a hawk, the hawk eggs are eaten by snakes, and the snakes are eaten by owls.

B.   Seeds are eaten by sparrow, the sparrow is eaten by a hawk, and the hawk's eggs are eaten by a snake.

C.   Seeds and grasses are eaten by various insects and small herbivores, the insects are eaten by a meadowlark, the small herbivores are eaten by a hawk, the meadowlark and the hawk eggs are eaten by snakes, and the snakes are eaten by owls.

D.   Goats eat grass; the goats are milked and eaten by humans

A.   restrict the distribution of their prey

B.   quickly alter the behavior of their prey

C.   drive their prey to extinction

D.   cause the abundance of their prey to rise

A.   extracted from DNA

B.   provided by enzymes

C.   oxidized to make sugars

D.   provided by carbon dioxide

A.   CO2 reacts so quickly with other compounds that it should not be occurring

B.   there is no known mechanism for its occurrence

C.   it has occurred relatively rapidly

D.   it has occurred relatively slowly

A.   Sea star prey, such as mussels, might increase in abundance and crowd out other community members

B.   The communities would be statistically indistinguishable from one another.

C.   Prey species, such as mussels, would decline, but most species within the community would be unaffected.

D.   Other predators will simply replace P.ochraceus and take advantage of prey that P.ochraceus consumed

A.   temperate forests

B.   deserts

C.   estuaries

D.   tropical forests

A.   S-shaped population curve

B.   C-shaped population curve

C.   J-shaped population curve

D.   oscillating cycle

A.   Photosynthesis captures energy that other organisms access when they eat either plants or organisms that eat plants

B.   The sugars made during photosynthesis are building blocks of DNA

C.   All cells must have chloroplasts in order to survive

D.   All other organisms require carbon dioxide for life processes

A.   on the surface of recently cooled lava

B.   on an island that has just risen out of the ocean

C.   in a forest that had burned to bare ground

D.   on bare ground exposed by the retreat of a glacier

A.   substrates

B.   sugars

C.   enzymes

D.   work

A.   The nitrogen cycle is NOT important biologically: the atmosphere is composed of 78% nitrogen, so nitrogen is freely available to all living organisms regardless of where it is in its cycle

B.   nitrogen is a component of amino acids, proteins, and nucleic acids.

C.   photosynthesis by plants and phytoplankton removes substantial amounts of atmospheric nitrogen

D.   nitrogen forms the framewok for organic molecules essential to all organisms

E.   nitrogen is a major constituent of phospholipids, ATP, and other energy-storing molecules

A.   100

B.   10,000

C.   10

D.   2,000

E.   100

A.   The population will slowly decline until it reaches its carrying capacity and fluctuate at about that number

B.   Both a) and d) are possible

C.   The carrying capacity will increase

D.   The population may shoot past its carrying capacity too quickly and then crash

E.   The level of resources in the habitat will increase equally

A.   global patterns of oceanic circulation

B.   the intensity of a solar radiation

C.   the dominant herbivorous organisms of a region

D.   global patterns of atmospheric circulation