Unit 2 Biomes and Ecosystems Cycles Biomes 100

Unit 2: Biomes and Ecosystems Cycles Biomes 100 100 100 200 200 200 300 300 300 400 400 400 500 500 500 Bodies of Resources Grab bag water

What element can be changed by lightning into a form that plants can use? Answer

Nitrogen Home

How does the law of conservation of energy explain why the amount of available energy decreases along a food chain in an ecosystem? Answer

The energy is changed to a different form Home

What process uses combustion and releases CO 2 into the environment? Answer

Burning fossil fuels Home

Which process to plants use to take in CO 2 and use it to make sugar? Answer

Photosynthesis Home

Which part of the water cycle changes liquid water to water vapor? Answer

Evaporation Home

How does natural eutrophication affect a pond system? Answer

It causes nutrients to build up Home

How is a tundra biome similar to a desert biome? Answer

They both have little precipitation Home

Which factors determine a biome’s identity? Answer

The climate that exists there Home

In which biome would you expect to find a permafrost layer? Answer

Tundra Home

Would the p. H of water be a biotic or abiotic factor? Answer

Abiotic. Home

What are the four ocean zones from most shallow to deepest? Answer

Intertidal, neritic, bathyal, abyssal Home

Where does the majority of evaporation on Earth occur? Answer

Between oceans and the atmosphere Home

How do rivers and streams differ from lakes and ponds? Answer

Rivers and streams flow Home

How do organisms in the deep ocean get energy? Answer

Some use chemicals for energy rather than the sun Home

What is an abiotic factor that would affect the health of an ecosystem? Answer

Water temperature Home

How could chemical fertilizers affect nearby bodies of water? Answer

if they run off into the water, the fertilizer could cause eutrophication Home

Resource depletion, pollution, and habitat loss are all caused by which factor? Answer

Human activity Home

How does an increase in the human population affect ecosystems? Answer

The more humans, the greater the need for natural resources Home

True or false: taking a car instead of the bus or subway will help conserve natural resources Answer

False Home

What happens when resource depletion occurs? Answer

A large fraction of a specific resource is used up Home

Where is the smallest proportion or organism found at on an energy pyramid? Answer

At the top, energy is lost in each level Home

True or false: ecosystems constantly change in different ways over time Answer

True Home

What does biodiversity indicate about an ecosystem? Answer

The ability of the ecosystem to survive change Home

How is the temperate rainforest different from the temperate deciduous forest? Answer

Temperate rain forest has a long rainy season rather than moderate, year-round rainfall Home

How is secondary succession different than primary succession? Answer

Secondary occurs after a disturbance in an area in which the soil has remained intact Home