Evolution
What does "fitness" mean in a biological sense?
Ability to successfully reproduce
A term for something that makes its own food
Producer/Autotroph
All energy originally comes from:
The sun
A relationship in which two or more species benefit
Mutualism
The number of mass extinctions in the history of the Earth
5
An accidental change in DNA that can give rise to variation
Mutation
Organism that only eats meat
Carnivore
Diet of omnivores
Meat and plants
Species divide common resources by specializing is known as:
Resource partitioning
A species that is integral to the community and if it were to be removed it could cause a ecological disturbance
Keystone species
Movement of individuals into (immigration) or out of (emigration) a population
Migration
The 2nd level of the ecological pyramid is typically occupied by what level of consumer
Primary consumer
Shows the overlapping and interconnected food chains present in a community
Food web
Johnny has lice. It makes his head itch. This is an example of:
Parasitism
Occurs when there are no traces of the original community remaining
Primary succession
Evolution that occurs by chance (luck)-example you squash a bug walking to Saint Gertrudes
Genetic drift
The amount of energy lost between trophic levels in an ecological pyramid
90%
Producers have 50,000 kilojoules of energy. How much energy will the secondary consumer get from that 50,000?
500 kJ
What's it called when an animal feeds on a plant?
Herbivory
A community that is fully developed and has healthy, working systems/food chains
Climax community
One condition that must be assumed when attributing change to natural selection
Organisms produce more offspring than can survive, organisms vary in fitness, organisms vary in characteristics
The amount of living tissue in a trophic level of an ecological pyramid
Biomass
Receives energy not from sunlight but from chemical
Chemosynthesis
What type of niche is restricted by competition? In this type of niche species adjust to one another
Realized niche
Generally occurs gradually, one species at a time, when environmental conditions change more rapidly than the species can adapt
Extinction