Modern SCUBA equipment contains a rebreather. This allows you to breathe the same air many times and produces no bubbles.

Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?

If the charge that enters each meter of the axon gets distributed uniformly along it. true or false

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form