bio 1101 quiz 5

"Food chains are an accurate representation of energy flow through an ecosystem." This statement is

false; real ecosystems are much more complex than simplified food chains.

Roughly how much energy in a trophic level is available to the next trophic level?

10 percent

If a food chain consisted of grass to rabbits to foxes, what weight of foxes could be expected in a meadow that has 10,000 pounds of grass?

100

Which of the following is an example of an abiotic factor?

mean annual rainfall in an ecosystem

The sex with the greater energetic investment in reproduction will be ___________________ when it comes to mating.

more discriminating

Which of the following is an example of commensalism?

A clown fish lives inside a sea anemone and is protected by it, while the anemone receives nothing from the clown fish.

competition

A common demand by two or more organisms upon a limited supply of a resource; for example, food, water, light, space, mates, nesting sites. It may be intraspecific or interspecific.

asexual reproduction

Process by which a single parent reproduces by itself

reproductive isolation

Separation of species or populations so that they cannot interbreed and produce fertile offspring

Which of the following is true about the sexual behavior of males and females?

The sex of any species with the greater energetic investment in reproduction will be more discriminating about mating.

Parisitism

a relationship between two species in which one species benefits and from the other species, which is harmed

Omnivores

are never found in the first trophic level

abiotic factors

nonliving parts of an ecosystem

European starlings and eastern bluebirds both nest in naturally occurring cavities. In areas where both species occur, starlings often evict bluebirds from their nesting holes and raise their own young there. This is an example of

competition

interspecific competition

competition between members of different species

intraspecific competition

competition between members of the same species

When more than two members of the same species live in the same place at the same time, they constitute a(n)

population

The main source of energy that drives global climate is

solar energy

Which of the following organisms would occupy a high trophic level?

spider

Commensalism

A relationship between two organisms in which one organism benefits and the other is unaffected

Mutualism

A relationship between two species in which both species benefit

Which of the following is an example of mutualism?

A remora fish removes algae and parasites from a shark's skin and receives protection in return.

Predation

An interaction in which one organism kills another for food.

trophic level

Each step in a food chain or food web

Speciation

Formation of new species

An honest signal is a signal

given when both the signaler and responder have the same interests, which cannot be faked.

The Gulf Stream

travels north through the Caribbean, bringing warm water up the east coast of the United States.

Wind circulation patterns are driven by

uneven heating of the earth's surface