Download Notes on Symbiosis, Carbon Oxygen Cycle and Food Webs

Notes on Symbiosis, Carbon Oxygen Cycle and Food Webs
3 Types of Symbiosis:
1. Mutualism – both species benefit (2 thumbs up)
Ex:
Fish that swims near a shark: Fish gets food and Shark gets
cleaned
Fish in the hippo tank at Camden: Fish get food and Hippo
gets cleaned
2. Commensalism – 1 species benefits, 1 species doesn’t care (1 thumb up, 1
thumb to the side)
Ex:
Clownfish and Sea Anemone: Clownfish gets a home,
Anemone doesn’t care
Bird in Tree: Bird gets a home, Tree doesn’t care
3. Parasitism – 1 species benefits, 1 species is harmed
Ex:
Tick and Human: Tick gets blood, Human gets harmed
Flea and Dog: Flea gets blood, Dog gets harmed
Carbon Oxygen Cycle:
Plants produce
oxygen
Plants breathe in
carbon dioxide
Animals breathe in oxygen
Animals breathe out
carbon dioxide
Food Webs:
*All food webs start with producers.
*All food webs end with decomposers that break down dead things and return the energy
to the environment.
*4 types of consumers:
Herbivores:
Carnivores:
Omnivores:
Scavengers:
Eat only plants
Eat only meat
Eat plants and meat
Eat only dead meat
*If I removed one organism from the food web the entire food web would be affected
because some organisms wouldn’t have predators and overpopulate which would
decrease the population of their prey and so on and so forth. It upsets the balance of the
whole ecosystem. Ex: If I removed a snake, the mouse population would increase and
the grass population would decrease.
*Arrows represent energy and show the energy transferring up!