AP Biology : AP Biology
Study concepts, example questions & explanations for AP Biology
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Example Questions
Example Question #11 : Ecology
Which of the following processes is an example of primary production?
All of these
Photosynthesis
Decomposition
Carnivorous consumption
Photosynthesis
Primary production is defined as the synthesis of organic compounds from atmospheric carbon. The main process through which this synthesis occurs is photosynthesis. Primary production is characterized as the generation of biomass in autotrophs. On the other hand, secondary production is described as the generation of biomass in heterotrophs.
Example Question #11 : Ecology
Which of the following would be considered as a secondary producer?
Flowering plant
Kelp
Antelope
Cacti
Antelope
Secondary production is defined as the generation of biomass by heterotrophs, mainly through the transfer of organic compounds among trophic levels. Organisms that are primarily responsible for secondary production include animals, protists, and fungi.
Example Question #12 : Ecology
Which of the following statements best describes the place of primary consumers on the food chain?
None of these
Primary consumers are herbivores and consume primary producers
Primary consumers are carnivores
Primary consumers are carnivores and consume primary producers
Primary consumers are herbivores and consume primary producers
In the food chain of most ecosystems, primary consumers are the organisms that consume primary producers, making them herbivores.
Example Question #1744 : Ap Biology
In the food chain, which of the following is consumed by secondary consumers?
Primary consumers
Autotrophs
Primary producers
Tertiary consumers
Primary consumers
Secondary consumers consume primary consumers in the food chain (i.e. a snake eating grasshoppers).
Example Question #13 : Understanding Food Webs
Which of the following is true regarding herbivores?
Herbivores eat plant material and are secondary consumers
Herbivores are secondary consumers
Herbivores eat plant material and are primary consumers
Herbivores are primary consumers
Herbivores eat plant material and are primary consumers
Herbivores are organisms that eat plant material. They are considered as the primary consumers in an ecosystem. An example of an herbivore is a deer, which feeds on flowers and grass.
Example Question #21 : Ecology
Which of the following statements best describes the function of decomposers?
All of these
Fungi and bacteria are common decomposers
They break down decaying organisms
They perform the process of decomposition
All of these
Decomposers are organisms that break down decaying organisms, thereby performing the process of decomposition. Common examples of decomposers include species of bacteria and fungi.
Example Question #22 : Ecology
Carnivores can occupy which of the following places in the food chain?
Decomposer
Secondary consumer
Primary consumer
Primary producer
Secondary consumer
Carnivores are organisms that consume meat—animal tissue—as a part of their diet; therefore, on the food chain, carnivores may occupy the secondary, tertiary, or quaternary consumer levels.
Example Question #1741 : Ap Biology
Recycling is an important component of a functioning ecosystem. Which of the following is an example of nutrient recycling?
Nitrogen cycle
Water cycle
Carbon cycle
Decomposition
Decomposition
Nutrient recycling specifically refers to the movement of materials within food webs and ecosystems that recycle them back into production. Nutrient recycling can be distinguished from biogeochemical cycles, like the water, nitrogen, and carbon cycles, which describe the exchange of matter through living and non-living components of the Earth.
Example Question #21 : Understanding Food Webs
Which of the following terms is used to describe the different levels of a food chain?
Trophic levels
Biomass
Biodiversity
Community
Trophic levels
Trophic level is the term used to a specific point on the food chain. An organism’s trophic level is the place they occupy in the food chain of a particular ecosystem.
Example Question #22 : Understanding Food Webs
Which of the following best represents a component of biodiversity?
Ecosystem variation
All of these
Genetic variation across the planet
Variety of organisms in an ecosystem
All of these
Biodiversity refers to the different types of life present on Earth. This can refer to the variety of species in an ecosystem, the genetic variation across the planet, and ecosystem variation.
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