An organism that eats meat
What is a Carnivore
An organism that uses sunlight to create its food
What is a producer (autotroph)
any animal that feeds mainly on plants; plant-eater
What is a herbivore?
any living thing that feeds on both plants and animals
What is an omnivore?
an organism that hunts, kills, and eats other organisms
What is a predator
Plants' source of energy
What is the sun?
Many individuals of the same species in one area is a
What is a population?
something that eats something else for food
What is a consumer? (heterotroph)
An organism that feeds on dead and decaying animals
What are scavengers?
Plants use this process to turn light into chemical energy
What is photosynthesis?
Give an example of a pioneer species
lichen, mosses, some grasses
the natural (or human-caused) change of an ecosystem especially after a disturbance
ecological succession
one organism of one species
What is an individual?
Air, water, and the Sun are all ......
What is are abiotic factors?
the maximum number of individuals of a particular species that an environment can support
carrying capacity
Any living thing that feeds on already broken down dead bodies of other living things (mostly fungus and bacteria)
What is a decomposer?
bacteria, fungi, worms, ants, beetles, sow bugs
What are some examples of decomposers?
Food chains that are interconnected/overlaps in a particular ecosystem
What is a food web?
At the bottom of a trophic pyramid, what are those organisms called
What are producers (autotrophs)
What happens to the total number of organisms as you move up a trophic pyramid?
decreases
Something that restricts the number of organisms that can live in an area. (2x points)
What is a limiting factor?
The living and nonliving things in an area and the ways they interact in an environment (ex: redwood forest, swamp, Mojave Desert)
What is an ecosystem?
On a trophic pyramid what is the organism that eats the producer
What are primary consumers?
all the species living in a particular area
What is a community?
Living and dead biomass in an ecosystem is called...
What is biotic?
An animal that eats plants or other animals and does not make its own food.
What is a consumer?
An area that is suitable for a particular organism to live in is called....
What is a habitat?
The area of the Earth that includes living things
What is the biosphere?
the variety of species in an ecosystem
Biodiversity
The role that an organism plays in the ecosystem is called...
What is a niche?
What is ecology?
The study of how organisms interact with each other, how they are affected by their environment and how they, in turn, affect the environment that they live in.
Describe how matter and energy move through a food web. (hint: they move differently)
Matter: cycled
Energy: moves in one direction (cannot be reused)
the first species to colonize barren areas
pioneer species
List the levels of organization in order from species to biosphere.
Species, population, community, ecosystem, biome, biosphere
Describe a food chain with at least four levels
Various
a density-dependent limiting factor in which organisms (or species) try to gather needed resources before others
What is competition?
A process that uses chemicals (not sunlight) to generate glucose (2x points)
chemosynthesis
the movement of water in a plant from the roots to the leaves, and then evaporation from the leaves
transpiration
Define community
Multiple populations living in the same area
organism that feeds on trash (discarded feces, hair, other parts)
What is a detritivore?
Name two human activities that affect global systems
Burning fossil fuels, deforestation, monoculture, develepment/urbanization, habitat fragmentation, hunting/fishing, introduction of invasive species, pollution
Difference between primary and secondary succession
Primary succession starts after a disturbance in which no soil or living things are left
Secondary succession starts after a disturbance leaves some soil and maybe some living things
Identify the part of the graph labeled b (2x points)
exponential growth
Uh oh...
You gain 700 pts.
What type of ecological succession would you expect to see after a wildfire?
Secondary succession
Describe the difference between mutualism and commensalism
Mutualism is a symbiotic relationship in which both species benefit; commensalism: only one species benefits, the other is not affected
The gradual changing of the plants and animals in an area after a disturbance is called...
Ecological Succession
a close, interdependent relationship between two species
symbiosis
Describe a keystone species
plays a vital role in maintaining an ecosystem, this helps multiple other species