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Adaptations of Marine Organisms (Physical (Mouth parts (carnivores, filter…
Adaptations of Marine Organisms
Physical
digestion
circulation
respiration
excretion
body structure
reproduction
symmetry
Mouth parts
carnivores
filter feeders
herbivores
omnivores
usual diet
Behavioral
survival behaviors
acquisition of food
defense
reproduction
communication/socialization
courtship
seasonal behavior
migration
mating
nesting
social groups
Outcomes of Adaptation
Species evolves with new adaptations
Diverges into 2 subspecies
Subspecies eventually diverge into separate species
Individuals without the adaptations die out
Fitter species pass adaptations on to offspring
Classification
plankton
drifters - cannot move on their own
phytoplankton
photosynthetic
photic zone
zooplankton
microscopic animals
any zone
feed on phytoplankton
benthos
live on seafloor
crawl in sediments
example: crabs, clams, sponges, sea stars
nekton
swim
any zone
Ocean zones
Photic zone
sunlight penetrates
photosynthesis
Mid-water/twilight zone
Some sunlight penetrates
No photosynthesis
Aphotic zone
Deep ocean/seafloor
no light penetration
no photosynthesis