[2026] PTE Academic Reading - Fill in the Blanks (Dropdown)
Fill in the Blanks (Dropdown) #0102
Fill in the Blanks (Dropdown)
Fill in the Blanks (Dropdown)
Below is a text with blanks. Click on each blank, a list of choices will appear. Select the appropriate answer choice for each blank.
A keystone species plays a uniquely crucial role in maintaining the structure of an ecological . Without them, the ecosystem would be dramatically different or cease to exist . For instance, sea otters control sea urchin populations, which would otherwise devour entire kelp . The removal of such a predator causes a domino effect known as a trophic . Conservationists prioritize these species to preserve the overall biodiversity and of habitats.
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Highlights
ID:pt8912132732
Test No:#0102
Difficulty:Hard
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