Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater? a caliper and a flask
a stopwatch and a beaker
a balance and a beaker
a meter stick and a temperature probe

What is the difference between a meteoroid and a meteor?

Clara wrote the following hypothesis for an experiment about acidophilic bacteria. bacteria cells will stop dividing in a basic (alkaline) environment because of the high ph. which statement is the best way to restate the hypothesis so that it is more specific? growing acidophilic bacteria in some environments will cause the cells to stop dividing because of ph. if the ph of their environment is changed, acidophilic bacterial cell division will be affected. if the environment of acidophilic bacterial cells becomes alkaline, the bacteria will stop dividing. the more alkaline an environment, the less cell division will occur in bacteria.

Justify your choice of an objective to use when starting your observation of the euglena wet mount; of the euglena are swimming to the left, which way should you move your slide to keep the organism in view