Roles in the Ecosystem
Abiotic vs. Biotic Factors
Energy Transfer
Succession/Carrying Capacity
Competition/Symbiosis
100
What is another name for autotroph
producer
100
Biotic factors can exist without abiotic factors.
True or False
False
100
What is the primary source of energy that enters the ecosystem?
Solar Energy
100
What are some examples of limiting factors?
Severe Weather, Diseases, Competition, Predators, Human Threats
100
Commensalism is a symbiotic relationship where
one organism benefits and the other organism is neutral
200
What is another name for a heterotroph
Consumer
200
Describe some biotic factors you would find in a rainforest ecosystem.
Trees, toucans, snakes, frogs
200
1 - Sun, green plants, herbivores, carnivores
200
Climax Community is a relatively ____________ & _____________ ecosystem.
uniform and stable
200
Two rams are butting heads and fighting for a particular resource. This is an example of
Competition
300
What is the difference between scavengers and detritivores?
Detritivores - feed on dead organic material
Scavenger- feed on dead plants and animals
300
Which of the following is not one of the 7 Characteristics of life?
1. Metabolic Processes
2. Movement
3. Growth & Development
2 - Movement
300
Which organism would receive the least amount of transferred solar energy?
The Owl
300
What are some organisms that you would find in a pioneer community
Lichen, Moss, Fern
300
A fungus is growing on an athlete's foot. This is an example of ....
Parasitism
400
2 - return nutrients to the ecosystem
400
Which of the following characteristics DOES NOT make something biotic:
1. maintaining homeostasis
2. metabolic processes
3. being made up of molecules
3 - being made up of molecules
400
If the population of Crustaceans decreased, explain how this would affect the population of Reptiles.
The population of reptiles would decrease because they feed on fish who feed on crustaceans.
400
Why does the population decrease between July and December?
They are over the carrying capacity
400
Clownfish have a special mucus coating around them that allows them to not get stung by the sea anemone they live in. The clown fish get to eat food leftover and algae in the sea anemone while the anemone protects the clown fish from their predators. Which type of symbiotic relationship is this an example of?
Mutualism
500
Which factor would most likely cause an increase in the number of frogs?
An increase in number of snakes
500
What were some of the abiotic factors mentioned in the coral reef ecosystem reading worksheet?
Temperature, light, ocean currents, carbon dioxide
500
Explain why there is a different amount of energy represented at each level of an energy pyramid.
At each level, only 10% of the energy from the previous level is passed on, the rest is lost as heat.
500
Describe the difference between Primary and Secondary Succession
Primary succession begins after a natural disturbance such as a volcanic eruption where it begins with bare rock. Secondary succession is when there was a climax community but a natural disturbance like a forest fire destroyed most of the ecosystem. It still has some soil left.
500
Describe why competition would occur in an ecosystem.
When two organisms consume the same resource, because there is a limited amount of resources, it is inevitable that competition would arise.