Ecology Quizizz 2

What is used to show how energy flows through an ecosystem?

• Food chain

• Biogeochemical cycles

• Population studies

• Abiotic factors

Select all that apply: You can find these at the beginning of a food chain.

• Plants

• Chemosynthetic bacteria

• Primary producers

• Decomposers

Choose all that apply to the following food chain: flower, swallowtail butterfly, banana spider, mockingbird, house cat. The mocking bird is a _____.

• Carnivore

• Quaternary (4th) consumer

• Heterotroph

• Producer for the cat

One advantage of a food web over a food chain is that food webs _____.

• more accurately represent how energy flows through an edosystem.

• are easier to construct.

• include a producer.

• must have more trophic levels.

If the first level of an energy pyramid has 1,500,000 units worth of energy, how much energy will be availaible in the secondary consumer level?

• 1,500,000

• 150,000

• 15,000

• 15,000,000

• 1,300,000

Which is true about the biomass in an energy pyramid?

• The biomass remains constant but the size of the organisms in each level may be different.

• The biomass increases as you go up because the organisms typically get larger.

• The biomass goes down as you go up because there are fewer organisms in each level.

• None of these are true.

Erosion, beach deposition, and tectonic activity are examples of

• Geological Processes

• Chemical or Physical Processes

• Biological Processes

• More than one of these.

Which is a plausible carbon cycle? Choose all that apply

• Atmospheric CO₂, grass, cow, Culp, atomspheric CO₂.

• Atmospheric CO₂, algae, fish, bigger fish, Culp, atmosphereic CO₂

• Atmosphereic CO₂, apple, Culp, shark, atmospheric CO₂

• Atmospheric CO₂, carrot, Culp, atmospheric CO₂, moss, coal, atmospheric CO₂

Choose all that are true about nitrogen fixation

• Most fixation is done by bacteria that associate with the roots of certain plants.

• Nitrogen is rare in the environment, so it must be fixed from other types of atoms.

• Some nitrogen is fixed by lightning.

• When nitrogen is fixed, it is changed from N₂, which can't be used, to ammonia, which can be metabolized by plants.

What is a limiting nutrient?

• A substance that limits the amount of life in an environment because it is too abundant and prevents organisms by taking up other nutrients.

• A substance whose scarcity limits an ecosystem's productivity.

• A substance that regenerates in an ecosystem from nothing.

• I don't have another decent wrong answer. So, did you know that quire means two dozen sheets of paper? I need about one quire to run copies for our class.