Robert Hooke made this drawing after using a microscope to observe dead cork bark. What does Hooke's drawing show? A. Cell division B. Cell organelles
C. Living cells
D. Cork cells

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive