Which letter on the diagram above depicts or shows "POLYMERIZATION".
Please explain thank you

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

Why should organisms reproduce more offspring than will survive? select all that apply.

which is an effect of short-term environmental changes? a) adaptation b) speciation c) extinction d) death (5 points)