What are the two primary forces behind ocean currents? A. Energy transfer from winds
B. Variation in water depth by latitude
C. Density differences in water
D. The positions of Earth, the Sun, and the Moon

Place the steps tor the formation of the enzyme pepsinogen in correct order

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.