Identify two cell structures involved in modifying and transporting proteins out of the cell. Structure: 1
2
3
4
5
6
7

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

Two liquids are poured into a beaker. after a few seconds, the beaker becomes warm. which of the following best describes this reaction? a. an exothermic reaction b. a decomposition reaction c. an endothermic reaction d. a single-displacement reaction