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57 Cards in this Set

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  • Back
The place in which an organism is typically found is called?
Habitat
The total surroundings of a living thing are called?
Environments
Environments have 2 components?
Living (biological) and nonliving (physical and chemical)
The living things in an environment are called?
Biota examples are algae, fish, etc.
The nonliving things in an environment are called?
Abiotic examples are water, chemistry, light, temperature, salinity
A region that contains characteristic organisms that interact with one another and with their environment?
Life zone
Area located between high tide and low tide?
Intertidal zone
When ocean reaches its highest point along a beach?
High tide
When ocean is at its lowest level along the beach?
Low tide
A long line of seaweed and debris deposited on the beach during high tide?
Strandline
Organisms that live in the intertidal zone must be adapted to do what?
Meet the challenges of living in an area that has alternating periods of wet and dry.
Area where most beach activities take place?
Supratidal zone
Area above the intertidal zone up to the sand dunes?
Supratidal zone
Area that gets a fine mist of salt spray?
Supratidal zone
Limiting factor in the growth of plants in the lower supra tidal zone?
Salt spray
Area below the low tide line is the?
Sub tidal zone
Life zone that remains underwater?
Sub tidal zone
Area of heavy wave impact, has underwater turbulence?
Sub tidal zone
Organisms in this zone have structures that help them cling to hard surfaces?
Sub tidal zone
Why do organisms in the sub tidal zone need to cling to hard surfaces?
To keep from being swept away by waves and currents-examples are encrusting sponges, seas stars, sea anemones
What enables encrusting sponges to keep attached?
An acid they secrete to bore into rocks
What enables anemones/snails to stay attached?
Muscular feet
What enables sea stars to stay attached?
Tube feet
What allows barnacles to stay attached?
Cements itself to rock
What allows plants to stay attached?
Fibrous pad of tissue called aholdfast
What body shape is common to the subtidal zone?
Flattened...minimizes wave impact...examples are sand dollar, flounder
The largest life zone is the?
Pelagic
This covers the entire ocean above the sea bottom?
Pelagic
Zone where large pods of marine mammals and schools of fish swim?
Pelagic
What 2 zones are found in the pelagic zone?
Neritic--<200 m in depth
Oceanic--> 200 m in depth
Zone found past the Sub tidal zone is the?
Neritic
Zone found above the continental shelf?
Neritic
Relatively shallow part of the seafloor that ajoins the continents?
Neritic
Zone where the most fishing is done?
Neritic
Why is the neritic zone so productive?
River run off-provides nutrients, sunlit so photosynthesis can be carried out
The food making process on which most living things depends is?
Photosynthesis
Life zone that extends beyond the neritic zone?
Oceanic zone
Part of the oceanic zone that receives light?
Photo 'light' zone, enough life to support life. (euphotic)
Part of the oceanic zone that receives little or no light?
Aphotic (no light)
Most light penetrates to an average depth of ___ and to a maximum depth of ___ depth.
100,200
99% of all light is absorbed in ---zone?
Photic
Why is there more life in the photc zone?
Light promotes growth of algae and plants which is a source of food.
A characteristic of an organism that enables it to live successfully in its environment?
Adaptation
Give an exaample of an animal with an adaptation.
Angler fish lives in deep ocean, huge mouth, long sharp teeth- to catch prey, lure over mouth that glows in the dark- attracts prey, enables fish to see
Why do some deep ocean fish have mouths pointed upward?
To catch scraps of food as they fall from above
The deepest part of the ocean floor?
Ocean basin- abyssal plain
The area includes the entire ocean floor from shallow intertidal zone to deep ocean basin?
Benthic zone
Animals found in ocean basin (abyssal zone) are adapted to?
Low pressures and high temperatures
Animals found on the bottom (benthic zone) are reffered to as?
Benthos
A sampling device that has provided many new organisms from the bottom sediment is?
Box corer
Name some examples of the sampling equipment.
Box corer, fine mesh net
A area that contains a particular group of organisms that share the habitat, can form distinct bands?
Zonation
Harsh environment, composed of sand, battered by wind and waves?
Sandy beach
Region of crashing waves?
Surf zone
`What causes the white foam to form on water?
Air mixing with the water
How does the mole crab survive the turbulence of the surf zone?
Paddle like appendages dig into the sand, sticks its feathery appendages up in to the water to feed, jelly bean shape allows it to swim with minimal resistance to the sand and water
What alolows the surf clam to survive the surf zone?
Thick shell protects against wave impact and erosion of