'Many XXX of creatures are becoming extinct, or are suffering steep decline in numbers. The diver-sity of XXX is necessary for the functioning of ecosystems, and in some cases endangered XXX contribute to the human food chain (eg honey bees)...'
The word which fits best is 'species'.
Aliza
1 months agoHester
8 days agoKate
10 days agoDana
13 days agoGregoria
16 days agoKaran
2 months agoGianna
20 days agoGracia
22 days agoLorrie
26 days agoStephen
2 months agoVallie
2 months agoMadalyn
23 days agoElise
24 days agoMiss
26 days agoGiovanna
2 months agoCarey
2 months agoLaurene
2 months ago