1) I'm glad they changed it. Just goes to show them that, despite their KNOWLEDGE, their WISDOM is still lacking. Just cause you find the pieces, doesn't mean you know how to put 'em together. I wouldn't be surprised, if soon we came across evidence that giants or monsters existed in the past.
2) many things at the bottom of the food chain are plants, and many things at the bottom of the food chain are NOT plants, but still require photosynthesis to survive; so.,..you're BOTH right.
3). you know what he means; most things basically have some finite time period before they expire. However, a few example defy this limit on life. The organism Myself mentioned, as well as stem cells in the body, and cancer cells (especially those of Henrietta Lacks, whose cells are till growing TO THIS DAY, and have been doing so since the 50's)
4) again, ya know, some animals hunt, some graze, some get food otherwise...
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)