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Decker Biology B
Unit test 3 Ecology
| Question | Answer |
|---|---|
| A group of organisms of different species living together in a particular place is called a | community |
| In which of the following could one not reasonably measure biodiversity? | population |
| Succession occurs | as a previously existing community is replaced |
| Which two key factors determine the climate of the region | temperature and precipitation |
| In biomes where precipitation is low most organisms have adaptations to | conserve water |
| At least half of the world's species of land organisms live in a | tropical rain forest. |
| A bayou is an example of a | wetland |
| An area where fresh water from a river mixes with salt water from the ocean is known as a | estuary |
| Animals that feed on plants are at least in the | second trophic level |
| Which of the following is a decomposer | a worm |
| Photosynthetic algae are | producers |
| this shows how energy moves through an ecosystem | food web |
| leopard seals are | carnivores |
| Killer whales feed at the | third and fourth tropic level |
| Plants are | producers |
| animals that feed on plan eaters are no lower than | level C |
| The diagram on the test shows | energy pyramid |
| level A on the energy pyramid refers to | producers |
| Precipitation that percolates into soil becomes | ground water |
| Plants use carbon dioxide to build organic molecules during the process of | photosynthesis |
| All living things are made up of | carbon |
| Precipitation and evaporation are important components of the | water cycle |
| Because individuals in the population usually tend to produce more than one offspring | populations tend to increase in size |
| As a population reaches its carrying capacity, resources become more scarce. What would increase within the population? | competition |
| What is a biotic factor that affects population size? | food |
| Over millions of years, plants and their pollinators have | coevolved |
| What usually results when members of the same species require the same food and space? | competition |
| A species that is critical to an ecosystem because the species effects the survival and number of many other species is know as | keystone species |
| A group of organisms of different species living together in a particular place is called a | community. |
| Succession occurs | as a previously existing community is replaced |
| Which two key factors determine the climate of a region? | temperature and precipitation |
| In biomes where precipitation is low, most organisms have adaptations to | conserve water |
| At least half of the world's species of land organisms live in a | tropical rain forest |
| An area where fresh water from a river mixes with salt water from an ocean is a | estuary |
| Animals that feed on plants are at least in the | second trophic level |
| a worm is a | decomposer |
| Precipitation that percolates into soil become | ground water |
| Precipitation and evaporation are important components of the | water cycle |
| Plants use carbon dioxide to build organic molecules during the process of | photosynthesis |
| All living things are made of | carbon |
| Renewable sources of energy can | replenish themselves naturally |
| Wind is considered | a renewable energy source. |
| Coal is considered non renewable because | it takes millions of years to form |
| Solar Energy can be trapped in the atmosphere by | carbon dioxide |
Created by:
paigeperkes