An invertebrate with eyes both above and below the surface of the water.
What is a Whirligig Beetle?
100
A water molecule is made up of these elements, is considered a blank molecule, and makes this kind of a bond with itself.
What is hydrogen, oxygen, polar, and hydrogen.
100
This zone is where a majority of the aquatic "action" occurs.
What is the Littoral Zone?
100
This kind of a lake is very productive and low in oxygen concentration.
What is Eutrophic.
100
Describe the Lotic ordering system.
Headwaters are first order. When a stream meets up with another stream of the same order, they make a new order. Ex. if 1 and 1 meet, they make two. This continues until the final waterway empties into a large body of water.
200
This invertebrate is a grazer that relies on oxygen in the water for respiration.
What is a gilled snail?
200
This term is used to describe water's characteristically high surface tension.
What is cohesion.
200
During these two seasons, the upper and lower zones of a Lentic ecosystem mix during a process called turnover.
What is fall and spring?
200
This kind of an ecosystem is found along coasts of large lakes and seas where rising lake levels or tides cause water to flow back and forth.
What is a fringe wetland?
200
These estuaries were formed as the rising sea invaded existing river valleys. Chesapeake Bay is an example of one such drowned river valley.
What is a costal plain estuary?
300
This invertebrate is often confused with the dragonfly, but they are very different.
What is a damselfly?
300
This much water is found in oceans as salt water. This much water is freshwater. This much water is frozen freshwater.
What is 97%, 3%, and 2%?
300
This zone contains the least amount of dissolved oxygen as a result of little cellular respiration.
What is the profundal or aphotic zone?
300
This kind of pollution is caused by decomposition of living organisms and their biproducts.
What is organic pollution?
300
These estuaries are steep-walled valleys created by glaciers. They are common on Canadian coasts.
What is a Fjord?
400
This tiny crustacean is sometimes called a freshwater shrimp.
What is a scud?
400
This is the process by which water that has been absorbed by plants will evaporate through the leaves as water vapor.
What is transpiration?
400
This is a narrow vertical zone between the warmer and colder waters where a rapid temperature change occurs.
What is the thermocline?
400
This is a model used to determine the biotic community expected as the size of the stream increases.
What is the River Continuum Concept?
400
These estuaries are formed when geologic faulting or folding results in a depression, which is then flooded by the ocean. San Francisco Bay is an example.
What is a tectonic estuary?
500
The adult of this invertebrate is sometimes called a blind mosquito.
What is a midge?
500
Water is most dense at this temperature (degrees Celcius).
What is 4?
500
This is where detritus is decomposed.
What is the profundal zone?
500
This type of competition happens among individuals of the same species, e.g. humans compete against other humans.
What is intraspecific competition?
500
These estuaries are separated from the ocean by barrier beaches lying parallel to the coastline.