Who first used the word “atomos” to describe the smallest unit of a substance?

How would you take a difficult subject matter - such as poaching, deforestation, or climate change and communicate it in a kid-friendly way

Dominance the dominant allele doesn’t fully mask or hide the recessive. for example, a red carnation with a white carnation will produce a carnation. one gene one trait. well most of the time than one gene controls a trait. we are all different but genetically speaking we are % similar with regards to genetic makeup.

When explaining dominant and recessive traits to a younger family member, they respond, "well chances are i can probably taste ptc, since dominant traits are more common." how might you address this misconception?