Ecology biology final review

What percentage of energy is patched up each trophic leel

who consumes animals and lacks its own predator

All energy in most ecosystems initially comes from where?

What is the role a species plays in its environment called

which of the following is NOT an abiotic factor?

When organisms interact with each other in a way that helps both organisms survive it is which of the following

When a population grows to a point greater than its can facilitate, the population not do the following

What is the area between the deepest part of the ocean and the highest point of a mountain called?

Which biome is characterized by a layer of permafrost?

This compound is a central part of the nitrogen cycle

The exponential model of population growth applies

What factor is NOT an example of density-dependent environmental resistance?

water remains chemically unchanged throughout the water cycle

What is a keystone species

The Lowest trophic level of a food chain are the

An organism that produces its own food supply from inorganic compounds is called a(an)

a food web is another name for a food chain

The stable end point of succession is called

how does the water cycle sustains life on Earth

Which of the following leads to the least harm to the biosphere

decomposers get energy from

What is the lion an example of:

A  animal that feeds on leaves from only a few species of plants is an example of a

The carbon cycle is the continuous movement of carbon atoms between earth's atmosphere 

Species that predominate early in the development of a community are called