This organism is at the bottom of the food chain/web and uses photosynthesis to make its own food.
What is producer?
100
When two organisms are in close association, each benefitting from one another.
What is mutualism?
100
Competition between the same species is called...
What is intraspecific competition?
100
This biome receives lots of rain and has high biodiversity.
What is the tropical rainforest?
100
These limiting factors are dependent on the size of the population.
What is density dependent limiting factor?
200
This organism feeds on producers and is the second trophic level on a food chain/web.
What is primary consumer?
200
When two organisms are in close association; one is the parasite, receiving the benefit and one is the host, often being harmed.
What is parasitism?
200
Competition between members of different species is called...?
What is interspecific competition?
200
This biome is very cold and receives little precipitation.
What is tundra?
200
These limiting factors are not dependent on the size of the population.
What is density independent limiting factors?
300
This organism feeds on the primary consumer in a food chain/web.
What is secondary consumer?
300
When two organisms are in close association, one receive the benefit and the other is unaffected.
What is commensalism?
300
Cows and horses living on the same farm both eat the same kind of grass. The type of competition is...
What is interspecific?
300
This biome is very hot during the day and very cold at night. It receives little precipitation.
What is desert?
300
This limiting factor is density independent and results from lack of precipitation.
What is drought?
400
This organism is at the top of a food chain/web.
What is a tertiary consumer?
400
The roots of a mistletoe plant absorb nutrients from living oak trees, causing damage to the tissues of the trees. Name the ecological relationship.
What is parasitism?
400
Chimpanzees go into fierce battles to achieve the supremacy in the tribe. The type of competition is...
What is intraspecific?
400
This biome has trees that shed its leaves in the fall.
What is deciduous forest?
400
These two density determiners cause a decrease in population.
What is mortality and emigration?
500
1) What do the arrows on a food chain/web indicate?
2) Where in a food web/chain is the most biomass found?
1) What is the transfer of energy?
2) What is the bottom?
500
Protozoa living in the intestine of a termite secrete enzymes that digest cellulose, providing digestive end products of value to both organisms. Name the ecological relationship.
What is mutualism?
500
Two oak trees growing close together compete for sunlight, nutrients, and water. The type of competition is...
What is intraspecific?
500
This biome has trees that have leaves adapted to hold large amounts of snowfall.
What is coniferous forest?
500
These density determiners cause an increase in population.