Food Webs
What starts every food chain and food web?
The sun
If the bees go extinct, what happens?
So do we (humans).
This trophic level is the type of organism that eats the primary producer.
Secondary consumer
The ecological relationship where one organism benefits and the other is harmed.
Parasitism
Trees, ants, and algae
Biotic factors
What symbol shows the movement of energy in a food chain?
an arrow
A chemical spill occurs in a marsh. Will the fish population increase or decrease?
decrease
Grass and flowers are these types of organisms.
Producers
The ecological relationship where one organism is hunting and the other is hunted.
Predation
Sunlight, water, and the temperature outside
Abiotic Factors
What technically "ends" a food chain before cycling back around?
a decomposer
After a forest fire, can an ecosystem rebuild?
yes.
This trophic level is the type of organism that eats the secondary producer.
Tertiary Consumer
A fish lives and seeks shelter in a sea anemone, but the sea anemone is unaffected and does not realize the fish is there. What relationship is this?
Commensalism
All ecosystems have what two things?
Abiotic and Biotic Factors
What type of consumer eats both plants and other animals?
omnivores
In order for the human population to increase, does the birth rate have to be greater than or less than the death rate?
greater than
This trophic level is the type of organism that can create its own food, typically through photosynthesis.
producers
It is about to be winter, and the bears and the wolves are looking for food to help them through the season. There is only one animal species still available for both predators to eat. What type of relationship do the bears and the wolves have in this situationship?
Competition
True or False: All ecosystems have a carrying capacity due to having limiting factors.
True
True or False: As the energy is consumed through a food chain, the energy increases from consumer to consumer.
False
What is an invasive species?
A species introduced to an ecosystem that does not belong and disrupts the balance and resources.
This organism gets its energy when an animal dies, and it breaks down the dead animal's energy.
decomposers
There is a specific type of wasp that pollinates 900 species of fig trees. What kind of relationship is this?
Mutualism
What is the level of organization in an environment below an ecosystem?