Module 13 Review

Relationships Among Organisms

100

What kind of organisms are in the first level of a food chain? 

Producers

200

Each organism in a food chain represents a _________________. 

Trophic level

300

Define the three types of symbiosis.

Mutualism: a relationship between two organisms in which both organisms benefit.

Commensalism: a relationship between organisms in which one organism benefits and the other is neither harmed nor helped. 

Parasitism: a relationship between organisms in which one organism benefits and the other is harmed

400

Given the following organisms, organize them into a food chain: snake, eagle, grasshopper, grass, frog

grass -- grasshopper -- frog -- snake -- eagle

500

What are the three types of consumers? Define each of them AND give an example.

Herbivore- plant eaters (giraffe, cow, zebra, panda)

Carnivore- meat eater (cat, dog, lion, wolf, dolphin)

Omnivore- eat both plants and meat (humans, bear, turtle, fox, crow)

Organization in Ecology

100

What are the five ecological levels?

Biome, ecosystem, community, population, organism

200

Name the three major biomes that we looked at in this chapter

Tundra, Tropical Rainforest, Temperate Grassland

300

Name three characteristics of the Tundra

Answers vary. Ex:

Cold and dry; largest biome on earth, no trees, contains permafrost, animals include caribou, reindeer, polar bears, seals, foxes; animals often migrate or hibernate

400

Name three biotic and three abiotic factors in the ecosystem outside of our school

Answers vary

500

Name the three different names for temperate grassland in other areas of the world.

steppes (Europe and Asia)

pampas (Argentina and Uruguay)

veldts (South Africa)

Our Impact

100

How does the removal of one species from an ecosystem affect the ecosystem?

Answers vary

200

Explain the process of estimating a population.

Answers vary. Ex: Scientists capture a group of animals and mark them in some way. They release them back into their environment and then capture them again after a certain amount of time. In a large population, you would expect the second group to have little or no crossover with the first.

300

What is conservation and why is it important to us?

Answers vary. Ex: Conservation is the preservation, care and management of natural resources. The earth does not have an infinite number of resources and we must do our best to care for what we have been given.