The prefix "cardio" refers to D. heart
Planaria lives in freshwater and have eyespots
earthworm live in soil have mouth and anus and they have no eyes
<u>Mercurial </u>describes someone whose mood or behavior is changeable and unpredictable, or someone who is clever, lively, and quick. with a <u>mercurial teacher</u> you never know where you stand.
- Depending on how someone with a volatile temperament manages things, a mercurial personality can either be a bad or positive character feature.
- A person who is mercurial is typically thought of as someone who loses control readily and whose moods vary as frequently and abruptly as a Spring day.
- Mercurial is described as unpredictable or fickle. Someone who is mercurial is someone who can snap into anger in the span of a single second. Of or connected to the god Mercury in Roman mythology.
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