The reef's remarkable diversity of species collapsed within two seasons once the water temperature rose beyond a narrow threshold.
一旦水温超过某个狭窄的临界值，这片珊瑚礁惊人的物种多样性在两个季度内便崩溃了。
Ecologist Simone Bakker reports that an invasive species of freshwater snail is outcompeting native snails and reducing algae-grazing diversity in a chain of rivers, warning of long-term damage to river ecosystems.
From a Cross-Text Connections question · Craft and Structure
Volunteer-run seed libraries, which lend out seeds the way traditional libraries lend books, help preserve genetic diversity among regional plant varieties that commercial seed companies often no longer stock, a benefit frequently cited by advocates seeking municipal support for new seed library branches.
From a Central Ideas and Details question · Information and Ideas
Which choice best defines “diversity”?
C — Variety, difference. “diversity” means variety, difference.
Which word means “variety, difference”?
D — diversity. “diversity” means variety, difference.
diversity — variety, difference. In Chinese: 多样性.
diversity is pronounced /daɪˈvɜːrsəti/.
The reef's remarkable diversity of species collapsed within two seasons once the water temperature rose beyond a narrow threshold. (一旦水温超过某个狭窄的临界值，这片珊瑚礁惊人的物种多样性在两个季度内便崩溃了。)
variety, multiplicity, range — all close in meaning to diversity (variety, difference).
uniformity, sameness — each the opposite of diversity (variety, difference).
Yes. diversity is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
diversi(variety)+ty(noun)