Practice Exam
Ecology Vocabulary Work Sheet
Name:
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I. Interactions:
A. Competition: one wins and another loses B. Comensalism: one wins and another loses nothing C. Parasitism: ____________________ ___________________________________ D. ____________________: everyone wins and nobody loses |
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E. Coöperation: both help each other
F. _____________: to avoid competition an organism will use other resources
II. Habitat Origin
A. Native: an organism that was discovered in its niche as opposed to introduced to its niche.
B. _______________________________: a non-native that takes over space and habitat of a native
C. _____________________________: a population that is recruiting more new individuals than dying. (a net increase)
D. Decreasers:____________________________________________________ (a net decrease)
III. Desert Adaptations
A. Drought avoiders: plant dies off and leaves only seeds to with stand the drought.
1. Deciduous: _____________________________________________
2. __________________: lives for only a year or part of the year
B. Drought Resistant
1. Perennials: __________________________________________
2. Evergreen: never drops its leaves
3. _____________________: a plant that holds its water instead of waiting for it to fall. (Cactus)
C. Water Preferences
1. Xerophytic: likes _________ climates
2. Mesophytic: likes moist climates
3. Halophyte: likes __________ soils
D. Root types:
1. Tap root: ___________________ Only found near washes (mesquite)
2. Surficial root: ___________________________________( )
3. Generalized: has a deep root and a surficial root system. (Creosote)
Please refer to AK-2 for answers
