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【单选题】
What are novel entities?(Please select one answer)
A.
Chemical substances produced by plants, animals or humans that offer exciting opportunities to be used in pharmaceutical compounds and as food additives.
B.
Synthetic entities that have not co-evolved with nature, but that can alter natural processes.
C.
All plastic based materials i.e. polymers.
D.
Extraterrestrial materials (hypothetical life existing outside Earth) that enter the Earth system and affect the planet's meteorological processes.
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【单选题】the Naxi people were in their prime time in the ( ) Dynasty
A.
Tang
B.
Song
C.
Yuan
D.
Ming
【多选题】What are five unique traits of Novel entities?(Please select five answers)
A.
Toxicity
B.
Synthetic substances
C.
Chemically Persistant
D.
Transported around the world
E.
They accumulate on man-made surfaces in urban environments and leach into human food systems
F.
Systemic affect from bioaccumulation in natural systems
G.
They have an especially damaging effect on insects and molluscs
H.
High risk of irreversibility
【单选题】The Naxi people survived among so many big powers in history because they were good at ( )
A.
yielding
B.
conquering
C.
plotting
D.
intermediating
【单选题】Bioaccumulation means...(Please select one answer)
A.
An increase of chemical loading within cells
B.
A build-up of a substance in the tissues of an organism
C.
Altering of electrical nerve signaling pathways in tissues resulting in malfunction and the eventual breakdown of the nervous system of organisms