Roast for 4 to 6 minutes per half-inch thickness of salmon: Roasting time depends on the thickness of your salmon, as determined by the thickest part of the salmon fillet. For every half-inch of salmon, roast 4 to 6 minutes â 4 minutes will give you salmon that is still a touch rare, 6 minutes will thoroughly cook it.
How many species are ... then 10,000 species go extinct ... These experts calculate that between 0.01 and 0.1% of all species will become extinct each ...Read more. Positive: 95 %. ..... and because every speciesâ extinction ... we know of approximately 1,000 species that have gone extinct, ... Nobody really knows how many species ... Read more. Positive: 72 %. ... lived are extinct. The average life-span of a species is ... (many people would say premature extinction) ...
As species have appeared and others have disappeared, the overall trend in diversity has been strongly upward. Note also that this trend has periodic interruptions, called mass extinctions. The average rate over the past 200 my is 1-2 species per year, and 3-4 families per my. The average duration of a species is 2-10 million years (based on last 200 million years). Mass extinctions. Roughly 20 are recognized, of which 5 are major and the largest is the Permean, in which 50% of all marine families and 80+% of all marine species went extinct.