Which of these is a feature of lakes, but not rivers? select (a) organic matter builds up on the bottom. select (b) they can erode rock in their path. select (c) they can meander at slow speeds.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

a=c and then d= c because of the band so you get ac/dc and you add them together you get sound waves

linnaeus is the father of taxonomy

explanation:

which is the system of classifying and naming organisms. one of his contributions was the development of a hierarchical system of classification of nature. today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.