What is true about electromagnetic waves that is not true about mechanical waves? electromagnetic waves have lots of energy
electromagnetic waves can I travel in vacuum
electromagnetic waves have high frequencies
electromagnetic are made up of massless particles

Would really appreciate it, i have an idea but not completely sure

Arrange the following in the correct sequence, from earliest to most recent, in which these plant traits originated. 1. sporophyte dominance, gametophyte independence 2. sporophyte dominance, gametophyte dependence 3. gametophyte dominance, sporophyte dependence a) 1 → 2 → 3 b) 2 → 3 → 1 c) 2 → 1 → 3 d) 3 → 2 → 1 e) 3 → 1 → 2

The structure that houses the cells genetic information.