<span>an electrically charged atom or group of atoms formed by the loss or gain of one or more electrons</span>
Answer:
A.) for souvenirs
Explanation:
Tourists are interested in mining corals mainly to get souvenirs, since corals are known to be pretty and would be a "good" souvenir because of that.
Tourists would not be interested in mining corals to build roads, get protection, or get bone grafts because tourists are just interested in visiting a place and getting souvenirs from it.
Answer:
inhalation and exhalation
Explanation:
Nematocysts: A capsule within specialized cells of certain coelenterates, such as jellyfish, containing a barbed, threadlike tube that delivers a paralyzing sting when propelled into attackers and prey. Also called stinging cell.
Answer:
Blue green algae or cynobacteria
