Download Biology Notes: Community Interactions

Name: _________________________________________________ Date: _______________ Period: ________ Biology Notes: Community Interactions Directions: Fill in the blanks as we cover the topic in the PowerPoint. Corresponds to textbook pages 428 – 429 & 431 ‐ 434 Community Interactions • Community: Many _________________ species _________________ in the _____________ environment. •
Three types of interactions: – _____________________ – _____________________ – _____________________
Competition • Defined: _____________________ for _______________________ – ______________________, nutrients, light, ______________________, space – Occurs due to a______________________ number of ______________________ •
Intraspecific competition: When organisms of the ______________________ species ______________________ for ______________________. •
Interspecific competition: When organisms of ______________________ species ______________________ for ______________________. •
Competitive exclusion principle: No ______________________ species can ______________________ the ____________________ niche in the ____________________ habitat at the same ___________________. –
Example: What happens to the neighborhood coffee shop when a Starbucks is built next to it? _________________________________________________________________________________ _________________________________________________________________________________ Predation • Defined: when an organism ______________________ and ______________________ on ______________________ organism. • Predator = ______________________ •
Prey = ______________________ Symbiosis • Defined: relationship between __________ or more __________________ that live in ________________ contact __________________ one another. •
Three types – _____________________ – _____________________ – _____________________
Mutualism (+, +) • Defined: __________________ species __________________ Additional Information
from a relationship. •
Ex: Lichens (__________________ and __________________) •
Ex: __________________ fish and __________________ •
Ex: Cleaner __________________ and __________________ Commensalism (+, Ø) • Defined: _________ member of a symbiotic relationship ________________ and the _________________ is neither __________________ nor __________________ •
Ex: Cattle and __________________ – Birds __________________ insects __________________ up by the __________________ •
Ex: Barnacles and __________________ – Barnacles __________________ on whale Parasitism(+, ‐‐) • Defined: ________________ creature __________________ and one creature (the __________________) is __________________ •
Endoparasitism: – A parasite that __________________ the __________________ an organism. – Ex: Tapeworm feeds ________________ a human’s intestines ________________ his/her nutrients •
Ectoparasitism: – A parasite that __________________ the __________________ of an organism. – Ex: A leech __________________ on the blood of an organism from a host’s __________________. Review 1) What is a community? ____________________________________________________________________ 2) Name the 3 types if community interactions: __________________________________________________ 3) When do organisms usually compete? _______________________________________________________ 4) How do predators and prey interact? ________________________________________________________ 5) Name the 3 types of symbiosis: _____________________________________________________________ 6) What is the competitive exclusion principle? __________________________________________________ _______________________________________________________________________________________ 7) How does mutualism, commensalism, and parasitism differ? _____________________________________ _______________________________________________________________________________________ 8) How is predation and parasitism differ? ______________________________________________________ _______________________________________________________________________________________