A community of living organisms interacting with each other and the physical (non-living) environment
What is an ecosystem?
the presence of substances in the environment that produce undesirable impacts
What is pollution?
A chemical reaction where plants convert solar energy into biologically available energy in the form of glucose
What is photosynthesis?
What is one nutritional or environmental benefit of eating crickets
What is the SI unit for length?
meter (m)
Any type of close, long-term relationship between two different organisms
What is symbiosis?
Describe two different human activities that cause pollution.
Why do plants need roots?
To absorb water and nutrients from the soil; for stability
According to the film Food Inc., which corporation is the largest buyer of potatoes and other food products in the United States?
McDonalds
What is the SI unit for mass?
kilogram (kg)
A relationship between two organisms where one organisms benefits at the expense of the other (e.g., fleas on a dog)
What is parasitism?
What does AQI measure?
air quality / air pollution / the concentration of specific contaminants in the air
What percentage of energy is passed (transferred) between trophic levels in an energy pyramid?
ten percent
Why do different biomes exist in different parts of the planet? What 2 factors determine which biome exists in a given place?
What is the SI unit for temperature?
Kelvin (K)
Name (or point to) one consumer in the food web diagram below.
the hawk, the rabbit, the mouse
Which pollutant is primarily responsible for global warming?
Carbon dioxide (CO2)
Describe one way the presence of large forests help to mitigate (protect against) the process of global warming.
Plants sequester carbon dioxide from the atmosphere.
What are the two most common gases in the atmosphere?
nitrogen and oxygen
Name one derived SI unit.
Newtons (N) measure force
Joules (J) measure energy
Watts (W) measure power
Hertz (hz) measure frequency
What is the difference between a heterotroph and an autotroph? Name one example of each.
A heterotroph is an organism that must consume other organisms to obtain food (e.g., a tiger). A heterotroph is an organism that can produce its own food (e.g., a photosynthetic plant).
What is the name of this type of pollution? (OR: can you name one of the pollutants involved in its formation?)
Photochemical smog; formed when nitrogen oxides and volatile organic compounds react with sunlight to produce ozone; NOx and VOCs are primary pollutants in this example, ozone is a secondary pollutant
Write the equation for the photosynthesis reaction.
What is the main food source for cows, pigs, and other livestock?
corn
Convert 745 mm to meters
0.745 m