The invertebrates Haywardozoon pacificum and Trophomera mangani have recently been discovered inhabiting the Clarion-Clipperton Zone (CCZ), an area of abyssal plain between Hawai’i and Mexico where mining is permitted. The number of other invertebrates that may inhabit the CCZ is currently __________, as the area’s biota is poorly sampled and the few samples that have been taken cannot be presumed to be representative.
Desmos Graphing Calculator
Verbal·Craft and Structure·Words in Context
mediumWhich choice completes the text with the most logical and precise word or phrase?
A
infinitesimal
B
verifiable
C
tenuous
D
inestimable