Answer: Commonly known as deadly nightshade, belladonna, devil's cherry, and dwale. One of the most toxic plants found in the Western Hemisphere, all parts of the plant contain tropane alkaloids – as do those of its equally deadly sister species A.
Explanation: It contains several toxic alkaloids including coniine and is poisonous to humans and livestock. Consumption of just a small amount of any part of the plant can cause respiratory paralysis and death. Poison hemlock, with its purple-blotched stems, can cause paralysis if ingested.
The final sentence, It shows that Mateo needs to pump bubbles into the tank, and bubbles are just a gas trapped in a liquid, in this case, air in water. It shows that Mateo's fish needs the bubbles, which means it needs air.
