District Exam Flashcards
A species with a large range of tolerance for environmental conditions is known as what?
Generalist
An organism that uses the suns energy or chemical energy to produce sugars is a____?
Autotoph
A symbiotic relationship in which one organism benefits and the other is harmed?
Parasitism
The ultimate energy source for all ecosytems on Earth is?
The Sun
An organism’s use of resources and role in a community is?
Niche
Change in the gene pool over time is?
Evolution
Occurs when a species can not adapt to a rapid change in the environment?
Extinction
Makes up the first trophic level
Primary Producer
The removal of this species will alter a large portion of the food web?
Keystone Species
A relationship in which one species benefits and the other is harmed?
Predation
An organism that only eats only meat?
Carnivore
A honeybee pollinating a rose bush is what type of relationship?
Mutalism
A niche restricted by competion is?
Realized
When two or more species try to occupy the same niche, one wins and the other loses?
Competitive Exclusion
Organsims that rely on other organisms for energy and nutrients are called ?
Consumers
Species that colonize first during a succession period are called?
Pioneer Species
The process by which an ecosystem will try to restore itself after a natural disaster.
Succesion
adaptations that make the species more suited for its enviroment are passed on
Natural Selection
process by which an individual of one species hunts, captures and consumes another
Predation
a long lasting relationship in which at least one organism benefits
Symbiosis
Seasonal movement of animals to a more suitable living area
Migration
A heritable trait that increases an individuals fitness.
Adaptations
An organism that eats only plants.
Herbivore
What is an organism that eats the secondary consumer called?
Tertiary Consumer (3)
When humans breed animals and plants with favorable traits.
Artificial Selection
A food web is a diagram showing the feeding relationships of organisms and
Energy Flow
The remora attach to shark body and feed on the shark’s meal scraps all while the shark doens’t notice.
Commesalism
Wrasse fish feed on parasites on sea bass’ body. What type of relationship?
Commensalism
Mistletoe extracts water and nutrients from a spruce tree. What type of relationship?
Parastism
