Chapter 37 Quiz 3

The number of species in a community is called the 

• species population
• species richness
• species diveristy
• species index

The flow of ____________into ecosystems occurs in one direction only, while ___________ are recycled within the ecosystem itself.

• genetic information; genotypes
• minerals; energy compounds
• organic compounds; mineral
• energy; chemicals

Which of the following processes does not occur in ecosystems?

• producers convert light energy to chemical energy
• the energy source that powers the system is used by consumers to make organic compounds
• energy flows through the system
• carbon is cycled between biotic and abiotic forms

Which of the following substances is cycled between organic matter and abiotic reservoirs?

• fat
• protein
• carbon
• nucleic acid

Carbon mainly cycles between the abiotic and biotic worlds through the processes of 

• cellular respiration and photosynthesis
• evaporation and photosynthesis
• cellular respiration and transpiration
• transpiration and photosynthesis

Which of the following is not a component of the water cycle driven by solar heat?

• transpiration
• evaporation
• precipitation
• flow of water from land to sea

Which letter represents an organism that could be a carnivore?

• A
• B
• D
• E

Which letter represents an organism that could be a producer?

• A
• B
• C
• E

How are the living creatures in an ecosystem linked?

• By what they eat
• By how they breathe
• By their size
• By their species

Which of the following events is likely to result in the most widespread destruction to a food web?

• seasonal weather occurrences
• the extinction of an organism from the lowest level of the web
• the extinction of an organism from the highest level of the web
• increased competition for food among the carnivores in the web