The nutrient content and oxygen levels in streams and rivers often change from one part to another. Drag and drop the tiles to match the relative oxygen levels and zones of the river to its corresponding nutrient levels. Also, place the picture of an organism that would most likely inhabit each zone.

make   gliitsh plesea   !

i believe it is c: genes for body color and wing size are inherited separately from each parent.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

protistas excret ethanol used in the manufacture of vinegar