In ecology, an ecosystem is similar to a community. However, an
ecosystem differs in that it
includes...

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

Archaebacteria use for movement. celia flagella pili cell walls