Wildlife freshwater ecology Flashcards
True or False - Humans have little impact on biodiversity
False
True or False - Natures problems are our problems
True
True or False - Positive mutation increases organisms chances of survival is called an adaptation
True
True or False - 1% of Earths water is available for organisms
True
True or False - Elimination of several species is good for biodiversity
False
True or False - Biotic and Abiotic factors are independent from one another
False
Photosynthetic activity increases or decreases high turbidity?
High turbidity decreases photosynthetic activity becuase the higher the turbidity the murkier the water. The sunlight cant reach the plant that is under the water causing it to die. Whereas, lower turbidity increases photosynthetic activity becuase the water is clearer.
Why does the amount of dissolved oxygen in stream important?
Dissolved oxygen in a stream is important becuase dissolved oxygen is what fish need to breathe underwater.
Why is the addition of salt, sodium chloride, increases conductivity?
The addition of salt, sodium chloride, increases the conductivity in a stream becuase sodium chloride contains ions.
Will trees along banks heat or cool a stream?
Trees along a bank will cool a stream becuase the leaves protect the water from the suns rays.
Why is ocean water bad for most organisms?
Salt
Most freshwater is unable to be used because…?
Frozen
Why do we not run out of fresh water?
Water cycle
Some water returns to Earth’s atmosphere through…?
Evaporation
Freshwater makes up __% of all water.
3%
Which one of these terms is not a form of precipitation?
Snow, hail, water vapor, rain
Water vapor
What is condensation?
The process where water vapor condenses to a liquid
As population increases, the available freshwater…?
decreases
What is a good way to conserve water?
Wash full loads of laundry, not half loads
What are examples of abiotic factors in water?
Temperature, rocks, water
What are the energy roles in an ecosystem?
Producer, consumer, decomposer
What is a herbivore?
Organism that eats at plants
What makes up a healthy ecosystem?
More producers than consumers
If something has a pH of 4, it is…?
More acidic
What affects stream temperatures?
Trees, turbidity, etc?
Animals do not affect temperature
What causes acid rain?
Pollution
What can change conductivity?
Pollution, sewage, and fertilizers
