science living
Terms
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- levels of orgainization within an ecosystem
- Organism Population Community Ecosystem
- abiotic factors
- nonliving part of an ecosystem
- adaptions
- the behaviors and phsical characteristics of species that allow them to live sucessfully in their environments
- parasitism
- a relationship in wich one organism (the parasite) lives inside another (the host) and harms it -- host stays alive to help parasite, b/c if host dies, so does parasite
- habitat
- the place where an organism lives and that provides the things it needs
- ecology
- the study of how living things interact with each other and their environment
- immigration
- moving into a population
- emigration
- leaving a population
- what causes a population to increase in size?
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when the birth rate is higher than the death rate
when more organisms immigrate than emigrate - what factors limit population growth?
- limiting factors-- food, space, weather
- what adaptions do prey have that help them survive?
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camoflague (spiny bugs), warning color
(frog releases toxic), poison (skunk), protective covering (porcupine), mimicry (fly looking like bee) - what adaptations do predator have that keep them alive?
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cheeta- sprints
sundew- uses goo to catch flies
jellyfish- poison
claws, teeth, stingers