Download Monday September 10th Bellwork: Complete the Energy Pyramid

Monday September 10th
Bellwork: Complete the Energy
Pyramid Worksheet
Symbiosis­ close relationship between two or more organisms of different species that live in direct contact with one another.
1
Mutualism­ both species benefit from one another.
Examples: Lesser long­nosed bat­ the bat depends on night­blooming cacti as its source of food. As the bat feeds on the cactus fruit, it ingests the seeds and then disperses them as it flies across the desert.
2
Commensalism­ relationship between 2 species where one species is benefited and the other is unaffected.
Human eyelashes are home to tiny mites that feast on oil secretions and dead skin without harming us.
3
Parasitism­ relationship in which one species benefits while the other is harmed.
­It is not predation because the parasite does not want to kill its host, it needs it to survive.
Example: Braconid wasp lay larvae on hornworm caterpillars. The larvae feed on the caterpillar until they are large enough to leave. The hornworm will eventually die as its organs are consumed by the larvae.
Endoparasite­ live inside the organism and feed on the tissues and organs of the host.
Examples: hookworm, tapeworms, protozoans
4
Ectoparasite­ make home on the exterior of the body.
­usually feed on body fluids
Example: Leeches, ticks, fleas
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