The existence of a "global carrying capacity", limiting the amount of life that can live at once, is debated, as is the question of whether such a limit would also cap the number of species. While records of life in the sea shows a logistic pattern of growth, life on land (insects, plants and tetrapods)shows an exponential rise in diversity. As one author states, "Tetrapods have not yet invaded 64 per cent of potentially habitable modes, and it could be that without human influence the ecological and taxonomic diversity of tetrapods would continue to increase in an exponential fashion until most or all of the available ecospace is filled."
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What percentage potentially habitable modes has life in the sea not yet invaded?
Ah, so.. unanswerable

Manhattan's skyline, with its many skyscrapers, is universally recognized, and the city has been home to several of the tallest buildings in the world. As of 2011, New York City had 5,937 high-rise buildings, of which 550 completed structures were at least 330 feet (100 m) high, both second in the world after Hong Kong, with over 50 completed skyscrapers taller than 656 feet (200 m). These include the Woolworth Building (1913), an early gothic revival skyscraper built with massively scaled gothic detailing.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many buildings located in NYC are at least 330 feet in height?
Ah, so.. 550

Post-punk was an eclectic genre which resulted in a wide variety of musical innovations and helped merge white and black musical styles. Out of the post-punk milieu came the beginnings of various subsequent genres, including new wave, dance-rock, New Pop, industrial music, synthpop, post-hardcore, neo-psychedelia alternative rock and house music. Bands such as Joy Division, Siouxsie and the Banshees, Bauhaus and the Cure played in a darker, more morose style of post-punk that lead to the development of the gothic rock genre.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): New wave, industrial music, synthpop and house all share roots in what genre?
Ah, so..
post-punk