Biology Final Flashcards
Define biotic and give an example
A living thing that affects in organisms habitat
Ex. Plants
Define herbivore
Only eats plants
Example: Cow
Define carnivore
An organism that only eats meat
Ex. Lion
Define omnivore
An organism that eats both meat and plants
Ex. Bear, humans
Define limiting factor and give three examples
Factors that keep a population from increasing
Ex. Food supply, disease, predation
What is a niche
A role or position of an organisms and the environment
What is symbiosis
The close relationship between two or more species
Define mutualism and give an example
Two organisms that benefit from each other
Ex .fungi and algae
Define commensalism and give an example
One organism benefits and another does not
Ex. Clown fish and sea anemone
Define parasitism and give an example
One benefits and one is harmed
Ex.. Dog and flea
What is succession
The change in an ecosystem in one community replaces another as a result of a change
What do we call it when a community that is burned down grows back
Secondary succession
What is a biome
A group of ecosystems that share the same climate and region
What is used to characterize a geographical region
Climate in latitude
Give the characteristics of a taiga (or boreal forest)
Dense evergreen forest, semi-warm summers, and lots of pine trees
Give the characteristic of a tundra
Land with permanently frozen soil most of the time is treeless
Give the characteristics of the tropical rain forest
A hot, wet biome with year round humidity, lots of biodiversity
Define immigration
The movement of organisms into a population
Define emigration
The movement of organisms out of the population
Define death rate
Rate of death or numbers of individuals dying
Define birth rate
Rate of birth or number of individuals living
Define carrying capacity
The largest number of individuals in a species that the environment can support long term
Write the balanced equation for photosynthesis
6CO2 + 6H2O = C6H12O6 + 6O2
What organelle does photosynthesis occur in
The chloroplast
