A scientist discovers a cell in a sample of water from Utah's Great Salt Lake. She discovers the cell has a cell wall, ribosomes, and a nucleoid region. Upon further microscopic observation, the scientist notices the nucleoid region contains a single chromosome. Which of the following cells would it most likely be?

A) prokaryote
B) animal cell
C) plant cell
D) fungal cell

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 

the fossil record provides evidence of a common ancestor to many species.

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.