How much sleep do you really need? Experts generally recommend seven to nine hours a night for healthy adults. Sleep scientists say new guidelines are needed to take into account an abundance of recent research in the field and to reflect that Americans are on average sleeping less than they did in the past.
Word Origin and History for habitat Expand. n. 1762, as a technical term in Latin texts on English flora and fauna, literally it inhabits, third person singular present indicative of habitare to live, dwell, frequentative of habere to have, to hold, possess (see habit (n.)).
Habitat - Habitat is the place where an organism lives out its life. Different species of organisms may appear to have the same habitat but each has a different niche so that they can survive in that habitat.?