Which of the following shows the levels of organization in correct order from simplest to most complex? A. cells, organism, tissues, systems, organs
B. organism, organs, systems, tissues, cells
C. cells, tissues, organs, systems, organism
D. cells, organs, tissues, organism, systems

Which image shows labeled organelles that are present only in plant cells?

Why do we perceive objects as retaining their brightness under different lighting levels?

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures