Ecology Mid Unit Review

All penguins living together in one area are called a __________.

• community

• population

• food chain

• species

During the summer in the Arctic, mosquitoes breed exponentially. When winter comes, the population decreases dramatically due to a limiting factor. What is most likely the limiting factor in this situation?

• no vegetation

• colder temperatures

• more sunlight

• excess of food

What phrase best describes a community?

• the different types of predators in an area

• all biotic and abiotic factors in an area

• the various species of plants in an area

• all populations of organisms living in an area

Which is an abiotic factor in a tropical rain forest?

• top predator

• rain

• trees

• plants

Which of the following can be considered an ecosystem?

• an entire desert, including abiotic and biotic factors

• a population of fish in a small lake

• community of organisms within a desert

• wood of a rotting log

Which of the following consequences occurred when sea otters were overhunted along the Pacific Coast?

• Kelp came to grow out of control.

• The sea urchin population was reduced to dangerous levels.

• Many fish lost their habitats as kelp was destroyed by sea urchins.

• The population of sea otters on the Pacific Coast went extinct.

To identify a biome, which types of information would be most helpful?

• predator and prey types

• climate and plant and animal life

• longitude

• highest latitude measurement

Which statement is true about biomes?

• Land biomes are more complex than water biomes.

• Biome types only refer to areas on land, not water.

• There are many types of land biomes, but only one type of water biome.

• Many types of water and land biomes exist on earth.

Which biome type occupies the largest area on earth?

• temperate grassland

• savanna

• marine

• desert

Ten square miles of temperate forest has a larger variety of organisms than 10 square miles of taiga. What does the temperate forest have more of?

• abiotic factors

• producers

• succession

• biodiversity