BIO11 Module 1 Review

All the biotic and abiotic factors in a pond form a...

• Biosphere

• Ecosystem

• Community

• Niche

A relationship in which one organism is helped and another organism is neither helped nor hurt is called

• Mutualism

• Parasitism

• Competition

• Commensalism

A form of symbiosis in which both organisms benefit is called

• Mutualism

• Parasitism

• Commensalism

• Predation

All of life on Earth exists in a region known as

• an Ecosystem

• a Biome

• the Biosphere

• Ecology

Groups of different species that live together in a defined area make up a(n)

• Population

• Community

• Ecosystem

• Biosphere

Autotrophs are organisms that

• rely on other organisms for their energy and food supply

• consume plant and animal remains and other dead matter

• use energy that they take in from the environment to convert inorganic molecules into complex organic molecules

• obtain energy by eating only plants

The series of steps in which a large fish eats a small fish that has eaten algae is a

• food web

• food chain

• pyramid of numbers

• biomass pyramid

Nutrients move through an ecosystem in

• biogeochemical cycles

• water cycles

• energy pyramids

• ecological pyramids

In the nitrogen cycle, bacteria that live on the roots of plants

• break down nitrogen compounds into nitrogen gas

• denitrify nitrogen compounds

• change nitrogen gas into plant proteins

• change nitrogen gas into ammonia

Which biogeochemical cycle does not involve a stage where the chemical enters the atmosphere?

• Water Cycle

• Carbon Cycle

• Nitrogen Cycle

• Phosphorus Cycle