What has a glassy shell called a frustule?

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?