Flashcards
Homework pt 1 (5)
Flashcards do conjunto (16)
- 1What is ecology?-Study of relationships between organisms and their environment
- 2What is paleoecology?Study of the ecology of fossil organisms
- 3What are primary producers?-Make their own food (Autotrophs), usually by photosynthesis.
Ex. Seagrass - 4What are primary consumers?-Organisms that feed on plants or algae (heterotrophs; herbivores)
- 5What are secondary consumers?Organisms that eat primary consumers. (carnivores)
- 6What are tertiary consumers?Organisms that eat secondary consumers
- 7What are filter feeders (suspension feeders)?Heterotrophs that filter small particles of food from water.
Ex. Feather duster worms and Crinoids - 8What are deposit feeders (detritus feeders; mud eaters)?Heterotrophs that eat bulk sediments and filter out food.
Ex. some worms and some sea cucumbers - 9What are herbivores (grazers)?Heterotrophs that eat living plants.
Ex. sea urchins - 10Carnivores (predators)?Eat living animals
Ex. fish, sharks, cone snails - 11scavengers?Eat dead animals
Ex. many crabs - 12omnivores?Eat plants, living animals, and dead animals
ex. gulls - 13What does pelagic mean?Live above seafloor
- 14What do planktonic & nektic mean?planktonic - float in water column
nektic - active swimmers - 15What does benthic mean?Live on the seafloor (bottom-dwellers)
- 16What do sessile, vagrant, epifaunal, and infaunal mean?sessile - Don't move around (rooted)[Coral]
vagrant- Move around [crabs]
epifaunal - live above the substrate [seastar]
infaunal- live below the substrate (burrowers)