No, a single producer can feed thousands of organisms.
Are all pyramids upright pyramids?
100
A dark reaction that does not require sunlight, it occurs in the stroma.
What is the calvin cycle and where does it occur?
100
Hydrosphere, Lithosphere and Atmosphere
Sulfur cycles through which three components of the biosphere?
100
There is only a limited amount of matter
Why does mater need to be cycled in the biosphere?
100
Biotic means living, and abiotic means not living.
What time does biotic and abiotic mean?
200
Between 3 and 6.
How many trophic levels do food chains usually have? Between ___ and ___.
200
Solar energy is trapped and used to generate ATP and NADPH, occurs in the thylakoid membrane, inside the chloroplast.
What are light dependent reactions and where do they occur?
200
It is an important part of proteins and vitamins.
Why do organisms require sulfur?
200
The attraction of water molecules to other substances.
What is adhesion?
300
Pyramid of numbers, Pyramid of biomass, Pyramid of energy.
What are the three types of ecological pyramids?
300
The chlorophyll molecules contain pigment that is used to absorb light energy.
What is the role of chlorophyll molecules during the photosynthesis process?
300
Atmosphere.
Which part of the biosphere is phosphorus NOT found in?
300
The attraction of water molecules to each other. It is responsible for surface tension.
What is cohesion? And what is it responsible for?
300
Between the hydrogen and oxygen bond?
Where in the water molecule does hydrogen bonding occur?
400
The feeding relationships in ecosystems.
What do trophic levels describe?
400
Cluster of light absorbing pigment molecules within thylakoid membranes.
What are photosystems?
400
Denitrifying bacteria complete the cycle by converting nitrite or nitrate back into nitrogen gas.
What is the process of denitrification?
400
The energy decreases by 10%.
What is to the energy stored in each trophic level as they move up through the pyramid?
400
Secondary consumers.
What are organisms that eat primary consumers called?
500
A food chain is a linear pathway in which energy is transferred from producers to primary consumers to higher trophic levels. A food web is a model of energy transfer in an ecosystem that shows the connections among food chains.
What is the difference between a food web and a food chain?
500
6CO2(g) + 6H2O(l) + energy = C6H12O6(s) + O2(g)
What is the chemical equation for photosynthesis?
500
PO4(3-)
Identify the form of phosphorus that plants can use
500
4C because of thermal expansion.
At what temperature is water most dense? And why?
500
Acid deposition is the process which returns sulfur to the ocean.
Describe the role acid deposition plays in the sulfur cycle?