I think it's made up of 2 or more of the <em>same type</em> of atom.
yes because, when egg first starts there are two x's and when the y comes in from the father this causes a gender identity. Also this is believed to be true because of the starting development of breasts on men (nipples) because they serve no real purpose.
She is able to determine it to be a mollusk because Mollusks
characteristics are the following:
Term from Latin meaning “soft”
Has a mantle and cavity (breathing and excretion)
Radula (band like an antenna) is present
<span>Structure of the nervous system (brain wraps the
esophagus and has two nerve chords)</span>
In-taking new substances and excreting waste