Genetics, Population, Evolution And Ecosystems Flashcards
(15 cards)
What is an ecosystem?
A system made of a community of organisms, as well as the biotic and abiotic factors.
What is a community?
All the populations of different species living and interacting in a particular place.
What is a habitat?
The location where an organism lives.
What is a population?
All organisms of one species living in the same habitat
What are biotic factors?
A living component of an ecosystem, for example predation.
What are abiotic factors?
Non living elements of an ecosystem, like temperature and rainfall.
What is an ecological niche?
The role of an organism within an ecosystem, along with all biotic and abiotic factors they are adapted to.
What are the 2 main processes in ecosystems?
- flow of energy through the system
- the cycle of elements within the system
What is the study between organisms and their environment called?
Ecology
How does temperature affect ecosystems?
At low temperatures, enzymes work more slowly and at high temperatures, they can denature.
What is the maximum population size that can be stably supported in an ecosystem?
Carrying capacity
What are some abiotic factors that affect population size?
Light, water, space, temperature, chemical make up of surroundings.
How do suitable abiotic factors affect population size?
They promote successful breeding, which causes population size to increase.
How do unsuitable abiotic factors affect population growth?
They cause less successful breeding, causing the population to decrease.
What is intraspecific competition?
Competition that occurs between
