L.O.O.
What do you call a single living thing, such as a one oak tree or one wolf?
Organism
If a plant has 1000 units of energy, how much energy is typically passed on to the herbivore that eats that plant?
100 units
What happens when two species try to use the same limited resources, like food or space?
Competition
What is the primary source of energy for almost all ecosystems on Earth?
The Sun
Name one limiting factor that could stop a population from growing indefinitely?
food source, competition, habitat loss, ect
A group of the same species living in the same area is called________.
Population
Which group of organisms always sits at the bottom level of an energy pyramid?
Producers
What is the name of the relationship where both species benefit?
Mutualism
Humans and bears eat both plants and animals. What is the scientific term for this?
Omnivore
What do we call the maximum number of individuals of a species an ecosystem can support?
Carrying capacity
Is sunlight considered a biotic or abiotic factor?
Abiotic
What do we call the consumers at the very top of a food web that has no natural predators?
Apex predator
In the relationship between a hawk and a mouse, which animal is the prey?
the mouse
In a food chain/food web, what do the arrows represent?
The flow of energy
Why do most ocean plants and algae live near the surface of the water than at the bottom?
Both needs sunlight, which can only penetrate shallow water.
Give two examples of biotic factors found in a pond system.
Plants, fish, Bacteria, ect.
Why are there fewer lions in a savanna than there are grass plants?
Energy is lost at each level, so fewer consumers can be supported
In a parasitic relationship, does the parasite usually want to kill its host immediately? Why or why not?
No, killing the host to quickly will not transfer enough energy to the parasite for it to survive.
How is a food wed different from a food chain?
It shows how animals interact with more detail, showing the overlap of various food chains
What is the term for the slow process of an ecosystem regrowing after a forest fire?
Secondary succession
What is the term for all living and non-living things in the same area?
Ecosystem
Where does the other 90% of energy go if it is not passed to the next level of the energy pyramid?
Heat loss, life processes
What is the term for a specific "job" or role an organism has in its ecosystem?
Niche
Why are fungi and bacteria so important to an ecosystem?
As decomposers, they return nutrients to the ecosystem.
What is the term for when an ecosystem has many different types of plants an animals rather then just a few? Why is it healthier for that ecosystem?
Biodiversity, less competition for species within ecosystems and less impact when a species fails