Biology B: Unit 3 Bend 1 Flashcards

Biodiversity

• An organism that helps to define an entire ecosystem. Without this keystone species, the ecosystem would be dramatically different or cease to exist altogether.

• The impact of one organism or species on another, mediated or transmitted by a third.

• The impact of one individual or another when not mediated or transmitted through a third individual.

  
  

• Is the variety and variability of all life on Earth. It is the measure of variation at the genetic, species, and ecosystem levels.

Direct effects

• Indirect consequences of a particular action or event
• Immediate consequences or outcomes of a particular action or event

Indirect effects

• Consequences or impacts that are not immediately apparent or directly caused by a certain action or event
• Effects that are immediately apparent and directly caused by a certain action or event

Keystone species

• Species that are rare but have a large effect on their environment
• Species that are abundant but have little effect on their environment
• Species that have no effect on their environment
• Species that have a disproportionately large effect on their environment relative to their abundance.

Population

• The total area of a specific population
• The number of buildings in a specific area
• Total number of people living in a specific area
• The total number of animals living in a specific area

Conservation

• Careful use and protection of natural resources
• Neglect and depletion of natural resources
• Indiscriminate use of natural resources
• Wasteful consumption of natural resources

Ecosystem stability

• Ability of an ecosystem to maintain its structure and function over time
• The amount of sunlight received by an ecosystem
• The total number of organisms in an ecosystem
• The rate at which new species are introduced into an ecosystem

Interspecies competition

• Competition for resources between different species in an ecosystem.
• Mutualism for resources between different species in an ecosystem.
• Competition for resources within the same species in an ecosystem.
• Collaboration for resources between different species in an ecosystem.

Intraspecies competition

• Competition for resources between individuals of different species
• Competition for resources between individuals of the same species
• Cooperation for resources between individuals of the same species
• Competition for resources between individuals of the same family

Biomass

• Plastic waste
• Fossil fuels
• Nuclear waste
• Organic materials used to produce energy