In 1665, robert hooke, an english scientist, published his book micrographia, in which he described that pieces of cork viewed under a microscope presented small cavities, similar to pores and filled with air. based on knowledge discovered later on, what do you think those cavities were composed of? what is the historical importance of this observation?

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.

Osmosis requires? a- all of the above b- a selectively permeable membrane c- none, it does not involve water d- water e- a concentration gradient between solutes and water

Oxygen enters your body via the respiratory system by moving the