Still far behind but regarding the "Biology" segment a the start of the second Stream and your comments that the Power Suit isn't biology...

Chozo technology includes both bio-mechanics and techno-organics, that is to say, biology treated like technology and technology that behaves like it's alive.

The Chozo powersuit is confirmed to be partially organic and has, in fact, been shown absorbing or copying traits from organic organisms in the past even before the one-two punch of Samus's X-infection and Metroid cellular graft fuses it to her body and thus gains the ability to partake of her X-assimilation abilities.