Ecosystem Assessment 2

A process when individuals with certain traits survive and reproduce

• natural selection
• limiting factor
• adaptations
• carrying capacity

A symbiotic relationship when one species is benefited and the other is harmed

• predator- prey
• parasitism
• commensalism
• mutualism

An abiotic or biotic factor in an ecosystem that can cause a population to decrease

• carrying capacity
• limiting factor
• resource
• symbiosis

An organism that feeds on a living host

• parasite
• autotroph
• decomposer
• predator

The struggle between organisms for the same resources

• limiting factor
• competition
• symbiosis
• carrying capacity

The largest population that an area can support

• carrying capacity
• limiting factor
• resources
• biome

The area of the Earth where life exists

• biome
• biosphere
• community
• ecosystem

All of the biotic and abiotic factors in a certain area.

• biome
• population
• community
• ecosystem

Abiotic factors (non-living) that are characteristics of a forest ecosystem include

• light and the biodiversity of plants and animals
• temperature and the amount of water
• types of producers and consumers
• soil pH and the population of decomposers

A unicellular organism lives in the intestines of termites, where it is protected from predators. When the termite ingests wood it is digested first by the unicellular organisms, and becomes food for the termites. This relationship is good for both organisms. What type of symbiotic relationship is this?

• mutualism
• parasitism
• commensalism
• competition