What is a Trophic level
groups of organisms that occupy the same position in a food chain
What is a Adaptation, and why is it important
a behavioral trait, structural trait, or physiological trait that increases a species’ chance of physiological trait that increases a species’ chance of survival in a specific environment. It's important because fish need these adaptations to survive in their environment
What is Hydrosphere
All the water on earth
A stream that flows into a larger stream or other body of water
Tributary
What is a Habitat
The physical environment that a species needs to survive
What enables some fish species to live in freshwater and others to live in saltwater
Osmoregulation
What is water
Molecule of 2 Hydrogen and 1 oxygen atoms
wearing away and movement of solid earth materials called sediment
Erosion
What is a Niche
Defines how a species fits into its environment
what are the major fish classes
1) Jawless fish, Cartilaginous fish, Boney fish
What percent of freshwater do we have on earth
The Clean water act gave authority to the
EPA
What is a Food Chain
Energy moving from producers to primary consumers to secondary consumer and so on.
How do fish swim
Side-to-side wiggle starting at the head moving backwards along the body and is propelled forward backwards along the body and is propelled forward
What are all the Properties of water
Ice, liquid, Water can hold solutes to supply nutrients, Gas, Can hold other things that are pollutants, High surface tension, High specific heat
Areas of underground rock that holds water in pours or crevices
Aquifer
What is the difference between a Population and a Community
A Population is a group of the same species, and a Community is a group of all different kinds of species living inside one ecosystem.
What does the Swim bladder do for fish
inflate to rise, deflate to sink (some can use this to make noise for communication for courtship, use this to make noise for communication for courtship, defend territory, or to sound alarm when disturbed)
Is the attraction of water molecules to stick to other substances, and is also a result of its hydrogen bonds
Adhesion
What is the leading cause of pollution of aquatic resources in the USA.
Nonpoint source pollution