Biomes
Saltwater biomes have around _____% salinity, while freshwater biomes have around 0.1%
What is 3%?
The rate at which solar energy is converted into organic compounds is called...
What is primary productivity?
These are used to break up oil spills but may sink the oil to the ocean floor.
What are dispersants?
This trophic level is most affected by the buildup of persistent organic pollutants (POPs).
What are tertiary consumers?
The location in which freshwater and saltwater mix at the mouth of a river is called a(n)...
What is an estuary?
Almost _____ of global photosynthesis occurs in the ocean and is done by phytoplankton.
What is 50%?
A farm polluting a stream with fertilizer is an example of what kind of pollution?
What is nonpoint-source nutrient pollution?
What is the process by which the concentration of a toxic substance increases as it moves up the food chain?
True or False: The amount of saltwater on the Earth’s surface is vastly larger than the amount of freshwater.
What is True?
What increases productivity by bringing nutrients from the deep ocean to the surface?
What is upwelling?
True or False: Water pollution can be categorized by its source and/or composition
What is True?
True or False: Nutrient pollution usually has no effect downstream.
What is false?
List two characteristics of organisms in the intertidal zone:
-Tolerates a wide range of air and water levels
-Ability to submerge under water
-Ability to attach to a substrate
True or False: Areas of low productivity have a lack of sunlight, such as in polar oceans.
Which type of pollution causes the most human health problems?
What is biological?
List a characteristic of an area of HIGH marine productivity:
-High nutrient levels supporting phytoplankton growth
-Frequent upwelling bringing nutrients to the surface
-Dense populations of phytoplankton
-Coriolis effect causing upwelling
-No thermoclines to restrict flow
-Nutrients that are found at the mouths of rivers