Unit 1 Vocab
Energy, Matter, and Biomass
Food Webs and Chains
Carrying Capacity and Limiting Factors
Ecosystem interactions
100
What is an Ecosystem?
Organisms interacting with their physical environment
100
How do we show energy on drawings?
Arrows
100
An organism that makes it's own food is a_____
Producer or autotroph
100
What is carrying capacity?
the maximum population size an environment can sustain indefinitely, limited by resources like food, water, and space
100
Herbivores only eat ________
Producers, plants, algae
200
What does it mean if an organism or ecosystem is resilient?
it is the ability to recover from change or setbacks
200
If something is made of matter it__________
Has mass and takes up space
200
The most common producers are what type of organisms?
plants, algae, phytoplankton or organisms that can do photosynthesis.
200
What is an example of an abiotic limiting factor?
Water, sunlight, air, space, etc.
200
If the one of the organisms that a carnivore eats is eliminated, what do you think will happen to that carnivores population?
It will decrease.
300
What does community mean in biology?
A group of interdependent organisms living in the same region
300
What is Biomass?
The total amount of living matter in a given unit area.
300
Grass->rabbit->eagle is an example of
A) food web
B) food chain
Food chain
300
What a density dependent limiting factor?
A limiting factor that affects a population more the bigger the population gets ex: diseases spread easier in bigger groups that are close together
300
What usually happens when an ecosystem loses a keystone species?
Ecosystem collapses resulting in a lot of organisms dying until a new carrying capacity is established for the remain organisms.
Trophic cascade
400
What is an organisms niche?
Status or place of an organism within its environment.
400
Does the amount of biomass increase or decrease as you go up in trophic levels?
Decreases.
400
If an carnivore eats an herbivore, what level of consumer is it?
Secondary consumer or 2nd consumer
400
If a population exceeds it's carrying capacity. What will happen?
Some organisms in that population will start to die off.
400
What is a negative impact humans can have on ecosystems?
Pesticides, over-harvesting, habitat destruction, removal of apex predators (usually for farming purposes)
500
Another name for an autotroph is.......
A Producer!
500
What percent of energy gets passed on when an organism is eaten?
10%
500
What trophic level are apex predators usually?
tertiary consumers or 3rd level or highest level
500
What is the carrying capacity of the rabbit population in this graph?
About 50
500
If all producers in an ecosystem are eliminated. What do you think will happen to that ecosystems food web?
The food web will completely collapse