In which reaction are atoms combined, separated or
rearranged.

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.

For either problem would be greatly appreciated