hier1-population
deer in
hier1-community.html?
hier2-molecule
chlorophyll 4 porphyrin rings: O, N, Mg
hier2-tissue
epidermal
eukarya
Order
Carnivora posses
carnassials:
last upper premolars and first lower molars adapted for shearing food in a scissor-like manner.
edison
2K trials carbon filament (platinum did not work) 1879, replaced by tungsten.
(argon-nitrogen) (quartz glass/halogen-iodine,krypton,xenon)
Electrical Discharge:
phosphor coatings: Fluorescent, Mercury/Soduim Vapour
===
SQ 1=B 2=d 3=a 4=C 5=c
6=c 7=c 8=D 9=b 10=c
=== ---
Add themes, esp evolution
Add theory from ch22 Q6: attempts to explain many related phenomena.