Why was a beaker used for heating the solution? the beaker is the only one that can withstand high temperatures. the beaker's wide mouth makes it easier to add and remove test tubes without spilling a beaker fits the whole surface of the hot plate. the beaker can be more accurately read than a volumetric flask.

The beaker's wide mouth makes it easier to add and remove test tubes without spilling

B. The beaker's wide mouth makes it easier to add and remove test tubes without spilling

Explanation:

the element that provides strength to the exoskeletons of clams and oysters is phosphorus.

this is so because calcium carbonate is the main component in the shells. calcium carbonate is strengthened by phosphorus.

explanation:

cell regulation is conducted by special proteins.