Though killer whales, also called orcas, are considered whales by most people, they are actually members of the Delphinidae (dolphin) family. Killer whales are excellent hunters that a wide range of prey, including fish, seals, and big whales such as blue whales.
firm price. Definition. Price which is not negotiable. Use firm price in a sentence. â The offer was made, it was a firm price, so the investor had the opportunity to take or leave it.
The price of oil, or the oil price, generally refers to the spot price of a barrel of benchmark crude oilâa reference price for buyers and sellers of crude oil such as West Texas Intermediate (WTI), Brent ICE, Dubai Crude, OPEC Reference Basket, Tapis Crude, Bonny Light, Urals oil, Isthmus and Western Canadian Select (WCS).