Which of the following is NOT typical of a lake ecosystem? A. many kinds of aquatic insects
B. plankton
C. a euphotic zone
D. corals

Did you know that a blue wales tongue weighs more than an elephant?

The rapid decomposition of organic matter produces evidence which supports: the slow accumulation of coal deposits long ages of the earth rapid burial of vast amounts of vegetation biblical account of noah's flood

Where can a dna be found in a prokaryotic cell