Pre-Test [3] Ecology

What is the step in the transfer of energy and matter within a food web?

• energy path

• food chain

• trophic level

• food pyramid

Which type of pyramid shows the amount of living tissue at each trophic

level in an ecosystem?

• a numbers pyramid

• an energy pyramid

• a biomass pyramid

• a food pyramid

The branch of biology that deals with the interactions among organisms

and between organisms and their environment.

• economy

• modeling

• recycling

• ecology

What is the main source of almost all of the energy in ecosystems?

• carbohydrates

• sunlight

• water

• carbon

What is the lowest level of environmental complexity that includes living

and nonliving factors?

• biome

• community

• ecosystem

• biosphere

It is the process in the carbon cycle where the carbon is used to make sugar

(chemical energy).

• combustion

• photosynthesis

• digestion

• respiration

What biogeochemical cycle is the most affected when burning fossil

fuels?

• carbon cycle

• nitrogen cycle

• phosphorus cycle

• water cycle

Trophic level 1 in the food chain consists of:

• Decomposers

• Producers

• Primary consumers

• Secondary consumers

The biotic components that can make their own food through

photosynthesis.

• Autotrophs

• Heterotrophs

• Sapothrops

• none of the above

This the place where most of the Nitrogen can be found.

• Ocean

• Rocks

• atmosphere

• organism