Ecology Test Flashcards
What is a community?
All the living organisms in an ecosystem
What is an ecosystem?
All the living and non living things in the area
True or False: Energy moves in numerous directions throughout an ecosystem?
False
What is carrying capacity?
The point at which the population of an organism has reached the maximum size that an ecosystem can support
What is a niche?
The specific area that an organism fits into its ecosystem, including feeding and living and everything about the animals lifestyle
True or False: Ecosystems usually have more secondary consumers than primary consumers?
False
True or False: Biomass is highest at the bottom of the trophic pyramid?
True
True or False: Carrying capacity is reached when predators are removed from the ecosystem?
False
What is a population?
All the individuals of one species only in an ecosystem
What increases a population
Immigration, birth rate
When plants convert light energy into chemical energy, what process are they performing?
Photosynthesis
What is the cycle that involves carbon dioxide being released by organism and then being used by plants?
Carbon Cycle
An organisms niche includes…?
where it lives, what it eats, what eats it and the relationships it has
How does Nitrogen get back into the atmosphere during the nitrogen cycle?
By denitrifying bacteria
What decreases Population
Emigration, and Mortality (death) rate