In sentence 5, "voracious" most nearly means C. insatiable. This term describes someone or something that has an insatiable appetite or is extremely greedy for food.
(1) Sea otters are a keystone species in nearshore marine environments. (2) A keystone species dramatically affects the structure and complexity of their environment. (3) For example, when sea otters are present in rocky habitats, they eat sea urchins and urchin density decreases as a result. (4) Lower urchin density reduces grazing pressure on kelps, resulting in a more diverse nearshore ecosystem. (5) Sea otters are voracious; to survive in their cold-water environment, sea otters must consume 20-30% of their body weight in food each day.
In sentence 5, "voracious" most nearly means
AkeystoneBcreativeCinsatiableDomnivorous
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