E3 - Biomes Flashcards
REMINDER: Abiotic Factors
Abiotic factors are the parts of an environment that are non-living. Examples include water, dirt, rocks etc.
Abiotic Factors
Abiotic factors are the parts of an environment that are non-living. Examples include water, dirt, rocks etc.
What is an Autotroph
An autotroph is an organism that can make its own food using sunlight or other chemical energy. Green plants, algae, and some bacteria are examples of autotrophs.
Biotic Factors
Biotic factors are the parts of an environment that are living organisms. This includes all the plants and animals.
Biotic Factors
Biotic factors are the parts of an environment that are living organisms. This includes all the plants and animals.
REMINDER: Biotic Factors
Biotic factors are the parts of an environment that are living organisms. This includes all the plants and animals.
Biotic Factors
Biotic factors are the parts of an environment that are living organisms. This includes all the plants and animals.
REMINDER:
A decomposer is an organism that decomposes (breaks down) dead organisms for food. This process also adds nutrients to the soil that can then be used by the producers.
A decomposer is an organism that decomposes (breaks down) dead organisms for food. This process also adds nutrients to the soil that can then be used by the producers.
What is a Dependent Variable? Provide an example.
The dependent variable, is the factor that may change as a result of changes made in the independent variable.
an example would be height and mass
What is a Independent variable? provide an example
The independent, or manipulated variable, is a factor that’s intentionally varied by the experimenter
an example would be the temperature of the soil
what is a Ecosystem?
An ecosystem is a system made up of all living and nonliving things in one environment.
Living things like plants, animals and microbes are called biotic factors.
Non-living things like sunlight, air, water and rocks are called abiotic factors.
what is a Food Chain
A food chain is a series of organisms that transfer energy in the form of food to each other in a single direction.
what is a food web
A diagram of the food chains in an ecosystem. Food webs can be very complex because there can be many different organisms in an ecosystem.
what is a Heterotroph
Heterotrophs are organisms that cannot produce their own food so they must eat other organisms, either plants or animals, to receive energy.
what is a Keystone Species? provide an example
Keystone species are the most important species in an ecosystem. Other organisms in an ecosystem depend on keystone species to survive. Removing keystone species has a bigger effect than removing other species from an ecosystem.
REMINDER:
Primary Consumer
A primary consumer is an organism that eats producers.
Secondary Consumer
Secondary consumers eat the organisms on the primary consumer and producer trophic levels of the food web.
Tertiary Consumer
Tertiary consumers eat the organisms in the secondary consumer or lower trophic levels of the food web.
Scavenger
Scavengers are animals that consume dead animals to obtain energy.R
Primary Consumer
A primary consumer is an organism that eats producers.
Secondary Consumer
Secondary consumers eat the organisms on the primary consumer and producer trophic levels of the food web.
Tertiary Consumer
Tertiary consumers eat the organisms in the secondary consumer or lower trophic levels of the food web.
Scavenger
Scavengers are animals that consume dead animals to obtain energy.
what is a trophic level?
A trophic level is a section is a position in a food chain that an organism occupies (ex: producers are the first trophic level)
What causes an ecosystem to not be sustainable?
habitat change, climate change, invasive species, overexploitation, and pollution.
