Symbiotic Relationships
Interactions between organisms in an ecosystem, that occur over a long period of time are called this type of relationship
What is symbiotic/symbiosis?
Each time you go up a trophic level in a food web, only ______ percent of energy is actually transferred to the next consumer
What is 10%?
Autotrophs convert energy from this, into food for consumers
What is the sun?
The water cycle is powered by
What is energy from the sun?
This the the term for the place where an organism lives
What is habitat?
When one organism benefits while the host is harmed indicates this type of symbiosis
What is parasitic/parasitism?
As you go up trophic levels in a food web, _______% of energy lost to the environment
What is 90%?
These rely on obtaining their energy from dead and decaying organic matter
What is a decomposer (or scavenger)?
Air is about 78 percent of this. Decomposers release it into the air from dead organisms and their wastes. However, producers such as plants can’t use in this form. It must combine with other elements before producers can use it. This is done by certain bacteria in the soil. It’s called “fixing” ______.
What is nitrogen?
A group of the same species living in an ecosystem is called this
What is a population?
When both species benefit from a relationship, it is this type of symbiosis
What is mutualism?
These are the most important organisms in a food web/food chain
What are producers?
As resources decrease/dwindle in an ecosystem, this will increase among populations
What is competition?
This element can be stored in plants and animals, which is why they are considered _____ life forms. It is used by plants to build leaves and stems, which are then digested by animals and used for cellular growth. Think organic.
What is carbon?
How do animals get the nitrogen they need?
What is from the food they consume?
One species benefits while the other is neither hurt or harmed is this type of symbiosis
What is commensalism?
Energy is passed from the sun to other organisms depicted by one these pathways.
What is food webs (or trophic levels/food chains)?
Besides air, this is the most important resource for an organism's survival
What is water?
A decrease in trees in an ecosystem would most likely result in an increase in this compound
What is carbon dioxide?
The word that means the role or job an organism has in its community is _______________.
What is niche?
Is predator/prey a type of symbiotic relationship? Explain!
What is no, because it is not a long term relationship and can vary depending on what the predator is feeding on.
Starting with the sun, list the correct flow of energy in an ecosystem
What is sun, producers, consumers, decomposers?
If the major food source for a species dies off, what will most likely happen to that population?
What is adaptation, dwindling #s or extinction?
How does nitrogen enter a forest food web?
What is it is released by the decomposers and then absorbed by plants.
Name three main limiting factors in an ecosystem
What is shelter, food, and water?