The number of species on an island remains relatively constant when a) the rate of successful colonization is less than the extinction rate. b) the rate of successful colonization equals the extinction rate. c) the rate of successful colonization is greater than the extinction rate. d) species richness increases. e) none of these occur.

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3

Where can dna be found in a prokaryotic cell

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities