Ions are atoms that have gained or lost which subatomic particles?

a. protons
b. neutrons
c. electrons

Which part of a feedback mechanism is able to monitor the conditions outside of cells and usually uses nerve cells to relay this information to an intergrating center

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse