How does the author’s use of the word “tusk” inform the reader?

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

Asmall population of chimpanzees lives in a habitat thant undergoes no change for a long period of time. how will genetic drift affect this population

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary