Unit 4 Ecology
Food Web
(ecology) a community of organisms where there are several interrelated food chains
As you move up the Energy Pyramid, what percentage of energy is transferred to the next highest energy level?
10%
Symbiosis
A close relationship between two species that benefits at least one of the species. The three types are; Mutualism, Commensalism and Parasitism
Commensalism
A relationship between two organisms in which one organism benefits and the other is unaffected
Mutualism
A relationship between two species in which both species benefit
Food Chain
A simple model of the feeding relationships in an ecosystem, showing the transfer of energy.
Parasitism
A symbiotic relationship in which one organism benefits and the other is harmed
Predator
An organism that captures and eats other consumers.
Decomposer
An organism that recycles once living matter by breaking it down. ie: fungi, bacteria, worms
A variety of life in an ecosystem is called.....
Biodiversity
What are the two products of Respiration?
Carbon Dioxide & Water (water vapor)
What gas is absorbed in photosynthesis but released in respiration?
Carbon Dioxide CO2
Which of the following organisms are consumers? Hawk, Bean Plant, Rabbit, Grass, Seeds, and Fox
Hawk, Rabbit, and Fox
When graphing data, what information goes on the x axis? Independent or dependent variable
Independent variable
What do the arrows in a food chain represent?
It shows the transfer of energy from one organism to the next, the flow of energy through the food chain.
In the following food chain, which organism is the primary consumer? Grass->mouse->snake->hawk
Mouse
What symbiosis exists between the Badger and The Honey Guide bird?
Mutualism
Something that can be perceived with one ore more of the 5 senses (sight, taste, hearing, smell and touch) is an....
Observation
An inference is something a scientist thinks is true based on two things. These are.....
Observation and evidence
Consumer
Organisms that cannot make their own energy-rich molecules. They obtain energy by eating other organisms. There are 4 types: Carnivore, herbivore, omnivore and decomposer
Producer
Organisms that use an outside energy source, like the sun, to make energy rich molecules.
A flea on a dog is an example of what type of symbiosis?
Parasitism
This process converts light energy into chemical energy......
Photosynthesis
Photosynthesis is performed by.......?
Plants or Producers
What is the relationship between a fox and the rabbit it eats?
Predator/prey
At what level on the Energy Pyramid is the most energy contained?
Producer level
At the end of the respiration process, is energy released or stored?
Released
This process releases heat and allows mechanical energy........
Respiration
Prey
The organism that is captured by a predator.
What is the source of energy used in photosynthesis?
The sun
What is the path of energy as it moves from the sun through all living things?
The sun's light energy, by the process of photosynthesis, is converted to chemical energy. When a herbivore eats the plant, the producer, the chemical energy is transferred to the consumer and through the process of respiration is converted to mechanical energy.
What are the two products of Photosynthesis?
glucose (C₆H₁₂O₆) and oxygen (O₂)