Note: there is more than one answer. the krebs cycle: a. needs oxygen b. produces more atp than glycolysis c. produces pyruvic acid d. produces carbon dioxide e. produces water

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

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Eutrophication caused by human nutrient pollution.