An organism that drifts with the currents, is microscopic, and can sometimes reach lengths of over 100 feet.
What is plankton?
available food, competition, and predation
What are biotic factors ?
Things like space, food, light and mates
What are things that organisms compete for?
What is a biological fitness?
These are two types of producers in the ocean
What are phytoplankton and algae/seaweed?
Another name factors that influence a food web such as the wind, waves, tides and sun.
What is abiotic?
This is how mussels and barnacles feed
What is filterfeeding?
This shows that this species has a relatively constant mortality rate over its lifespan
An organism that can not create its own food, but must obtain it from another source.
What is a consumer?
Since the ocean is a very stable thermal environment, this makes it possible for the majority of marine organisms to be
What are ectotherms? (cold-blooded)
Phytoplankton absorb sunlight and turn the sun's energy into organic material through this process.
What is photosynthesis?
This is why population growth curves flatten out
What are limiting factors?
This is an abiotic factor that is a factor deep in the ocean, but not at the surface of the ocean.
What is pressure?
This is why fish and other marine organism's lose water to their environment.
What is the ocean is a hypertonic environment?
(or there is more salt in the ocean water than in their body fluids)
An organism that has a bigger effect on the composition of the ecosystem than its own population numbers would suggest.
What is a keystone species?
This place is occupied by a species in its ecosystem; it is where it lives, what is eats, its foraging route, and its season of activity.
What is a niche?
This is why the trophic levels in an ecosystem are shown in the shape of a pyramid.
What is the idea that 90% of the energy is lost with each move up the trophic pyramid?
When organisms in a population are evenly distributed throughout the ecosystem.
What is a uniform distribution?