Which is not a characteristic of all circulatory systems?
a.
small, thin vessels called capillaries
b.
uses oxygen that ultimately comes from the surrounding environment
c.
carries oxygen to cells
d.
blood or blood-like fluid

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

Nh3 +02-no + h20 is unbalanced what is the balanced equation