Slope slōp/ noun 1. a surface of which one end or side is at a higher level than another; a rising or falling surface. a difference in level or sideways position between the two ends or sides of a thing. synonyms: gradient, incline, angle, slant, inclination, pitch, decline, ascent, declivity, rise, fall, tilt, tip, downslope, upslope, grade, downgrade, upgrade "the slope of the roof" a part of the side of a hill or mountain, especially as a place for skiing. synonyms: hill, hillside, hillock, bank, sidehill, escarpment, scarp; More verb 1. (of a surface or line) be inclined from a horizontal or vertical line; slant up or down. synonyms: slant, incline, tilt; More
The earliest known life-forms are putative fossilized microorganisms, found in hydrothermal vent precipitates, that may have lived as early as 4.28 Gya (billion years ago), relatively soon after the oceans formed 4.41 Gya, and not long after the formation of the Earth 4.54 Gya.
An organism's trophic level refers to the food chain position that it occupies. Producers always occupy the Trophy level 1, Primary Consumer occupies the Trophy level 2, Secondary Consumer has the Trophy level 3 and the Tertiary level fills in the Trophy level 4.
