-
What an organism does in its environment
Niche
-
specific place in environment where an organism is found
Habitat
-
The more complex the habitat, the more ______ there will be
microhabitats
-
group of the same species that occupies a specific area
population
-
a population of different species that occupy one habitat at the same time
community
-
relatively stable systems that result from the interaction of biological communities and the physical environment
ecosystem
-
What is homeostasis?
internal balance relative to external change
-
When environmental factors are within optimal range what two results are at its best?
survival and reproduction
-
What provides energy to all forms of life directly or indirectly. How?
Sunlight through photosynthesis
-
ectotherm
organisms that body temperature depends on the surrounding temperature.
-
endotherms
organisms that body temperature depends on its metabolic heat production.
-
animals that tolerate to wide variation in salt concentrations in which they live.
Euryhaline
-
Stenohaline
animals that have a limited tolerance to variations in salt concentrations in which they live.
-
Isosmotic
having body fluids with same osmotic pressure as the medium in which the animal lives.
-
Having body fluids that are more concentrated than the surrounding medium.
hyperosmotic
-
Hyposmotic
Having body fluids that are less concentrated than the surrounding medium.
-
Osmoconformer
organisms whose body fluids conforms with that of the surrounding medium
-
organisms who regulate or maintain its osmotic concentration in spite of external concentration changes
Osmoregulator
-
What are autotrophs?
organisms that produce their own food; primary producers
-
Heterotrophs are?
organisms that rely on other orgniams for food; consumers
-
Herbivores
eat grass, primary consumers
-
carnivores
- feed on herbivores (secondary consumers)
- feed on other consumers (tertiary consumer)
-
Omnivores
feed on both producers and other consumers
-
detritivores
Feed on poop and dead remains
-
Decomposers
break down the tissues of dead organisms
-
The average amount of energy that is transferred to the trophic levels is ____?
10%
-
-
Difference between K and r select.
Development/death rate/adult size/reproductive tempo
- K:
- slow, low, generally large, few/year
- r:
- rapid, high, generally large, many/year
-
What are the 3 symbiosis types and explain:
Parasitism: host has negative benefit; symbiont has positive benefit
Commensalism: host has no effect and symbiont has positive
Mutualism: both host and symbiont benefit
-
Pelagic Division -
The division of the marine environment composed of the ocean's water.
-
Benthic Division -
The division of the ocean environment composed of the ocean bottom.
|
|