Topic Two Flashcards
(184 cards)
What are abiotic factors?
These are the non-living parts in an environment.
What are examples of abiotic factors?
Wind Water Light Intensity Slope Temperature Soil
What is a population?
A population is a group of the same species of organisms living together in an area.
What is a community?
A community is many different populations living together in an area.
What is an ecosystem?
Both the biotic and abiotic factors in an area.
What are biotic factors?
These are the living parts in an environment.
What makes up the living parts of an ecosystem?
Animals, plants, bacteria, fungi and protists make up the living parts of an ecosystem.
What do organisms rely on the ecosystem for?
To satisfy their needs for shelter and food, as well as space for breeding and hiding from enemies.
Why do ecosystems contain different types of living organisms?
The have different types of organisms because they have different environmental conditions.
What is the biosphere?
the specific conditions needed to sustain life, consisting of the Hydrosphere, the Lithosphere and the Atmosphere.
What is the hydrosphere?
The hydrosphere is the part of the biosphere that consists of water.
What is the lithosphere?
The lithosphere is the part of the biosphere that consists of soil.
What is the atmosphere?
The atmosphere is the part of the biosphere that consists of air.
What will happen if the population of one organism changes?
It will affect the number of other organisms in the food web.
What is a system?
A system consists of different parts that work together for a common purpose.
What is a habitat?
A habitat is the environment in which organisms live.
What will organisms compete with one another for?
They will compete with one another for food, light, water, space and mates.
How does the temperature of an environment change?
Temperatures vary with latitude and with the environment as well as the seasons.
What is convection?
Convection is when warm air rises and cold air sinks.
How is wind created?
Winds are created when convection happens.
In what ways can wind influence ecosystems?
Wind carries water vapour which produces rain
Wind sometimes help to pollinate plants
Wind can sometimes erode and redistribute topsoil
Warm berg winds can cause dessication, which can result in a fire hazard
Wind can stunt plant growth
It can affect animal activities
Wind is used by some plants for the distribution of seeds
What are short-day plants?
They are plants that will only flower and germinate once a certain quota of nighttime is met.
How will sunlight affect plants?
Plants need sunlight for photosynthesis.
What are long day plants?
They are plants that will only flower and germinate once a certain limit on nighttime hours is met.