How do land plants generate the energy they need for their metabolic energy? What do they do with excess energy? Where do scavengers in an ecosystem obtain their energy from? How can scavenging be a beneficial strategy for an organism?
What is the role of decomposers?
What kind of problems can you foresee if every speck of carbon were turned into biomass? Why?
Define an ecosystem.
Distinguish between abiotic and biotic factors. Give examples of each.
Where does the energy come from for many ecosystems?
Name two nutrients that are recycled through an ecosystem.

How do temperature and salinity affect deepwater currents? question 15 options: as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.