puzzling; tangled; complicated; complex
apprehensions; misgivings; uneasiness; anxiety; fear
to ask elsewhere; to try another (store, service, etc.)
like everyone else; like most people; like an ordinary person; as much as anyone else
living thing; organism; creature; biology
(a) little; somewhat; somehow
study; scholarship; learning; discipline; branch of learning; (a) science
the Industrial Revolution
sluice gate; water gate; flood gate
to all appearances; no matter how you look at it
heredity; (genetic) inheritance
encompassing; covering (exhaustively); including (all of); comprising; comprehending
Escherichia coli (E. coli); colon bacterium
clockwise rotation; CW; right-handed rotation
one-thousandth; 0.03 mm (one-thousandth of a sun); 0.01 percent (one-thousandth of a wari); old monetary unit (0.0001 yen)
pink; erotic (usually used in relation to the sex industry); blue; pornographic
deep (colour); dark; strong (flavour, smell, etc.); thick (consistency); dense; strong (possibility, etc.)
adult (esp. person 20 years old or over); grownup; becoming an adult; coming of age; growing up (to be a man, woman)
to mistake (A for B); to misread
timidly; nervously; with nervous diffidence; trembling with fear
law; rule; regulation; destiny; fate; karma
double helix (structure of DNA)
deoxyribonucleic acid; DNA
hypothesis; supposition; assumption; tentative theory
to establish; to formulate
hitting the target; striking home; proving to be right; coming true; being on the mark
innumerable changes; infinite variety
well-informed person; walking dictionary; extensive knowledge
to be solved; to be resolved; to loosen; to come untied; to be removed (of restrictions); to be lifted (e.g. a ban)
mechanism; organization; organisation
elucidation; explication; explaining; unravelling; clarification; understanding
mystery; mysteriousness; secret