Because the "u" of "unique" is pronounced as if a consonantal "y" precedes it.
Scientists have found that toxic fugu have unique exocrine glands for the secretion of tetrodotoxin. The fish appear to actively produce the toxin, rather than passively acquire it from the environment.
palmaris longus
Antarctica is higher, drier, colder, windier, darker and icier than any other continent on earth.
It's not
Our sense of controlling our environment rather than feeling helpless.
. Small amounts of tourism is acceptable because it causes no more than a minor or transitory impact on the environment but if there were masses of tourism it would ruin the environment
Neptune was the first planet found by mathematical prediction rather than by empirical.
Scientists collect raw data on Antarctica, rather than performing experiments. Experiments are held back for performance in their domestic laboratories, sometimes using the raw data collected on the continent.
In this instance, 'unique' means 'different'. So 'ten unique species' means ten different species of animals, rather than ten examples of the same animal.
If there is 15 continents rathes than 7, do you think it would have any difference in the environment
No, because Tour Operators are bringing uneducated humans to Antarctica which are dumping litter etc, which ruins the effects the wildlife. Also, the ships that Tour Operators use are anchoring into vulnerable areas in Antarctica which obviously destroys that site. Scientists, hardly damage the environment in Antarctica.
It was ratified by state conventions rather than in state legislatures.