1. Which of the following might be a result of adding a secondary consumer to the aquatic ecosystem in the accompanying illustration? A. In an illustrated flowchart, the movement of carbon atoms through an aquatic food chain is indicated by arrows. B. An arrow points from CO2 in the air to primary producers in the water. C. Arrows point from primary producers to primary consumers, and back and forth with primary consumers and decomposers and scavengers. D. Arrows also point from primary producers to decomposers and scavengers, and via sinking to dead cells and CaCo3 shells accumulating at the bottom of the water. E. Arrows point from primary consumers and from decomposers and scavengers via sinking to dead cells and CaCo3 shells accumulating at the bottom of the water. 2. Which of the following might be a result of adding a secondary consumer to the aquatic ecosystem in the accompanying illustration? a. a decrease in the population of decomposers b. a decrease in the carbon sink a decrease in the number of primary consumers c. an increase in the population of scavengers d. an increase in atmospheric carbon dioxide

Interpret the model. a three-part model with black right-arrows between the parts. left part: a large green apple-shaped component with a w-shaped indentation centered on top. a small blue apple-slice shape sits above the left indentation and an arrow points from the shape to the indentation. a small purple apple-slice shape and arrow sit above the right indentation and an arrow points from the shape to the indentation. middle part: a large green apple-shaped component with a square indentation centered on top. sitting in the left side of the indentation is a blue apple-slice shape with a flat bottom, fused to a purple apple-slice shape with a flat bottom on the right side of the indentation. right part: a large green apple-shaped component with a w-shaped indentation centered on top. an up-arrow is centered above the indentation pointing to a fused blue and purple apple-slice-shaped flat-bottom component sitting above the indentation. assigne "true" or "false" to the end of each statement. the model shows a shape change occurring in the enzyme after the substrate is bound in the active site. t/fthere are two products in this model. t? f there are three substrates in this model. t/f the model shows two different enzymes. t/f

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Sexual reproduction in the parent cell will result in offspring with a) identical genetic information. b) half the genetic information. c) double the genetic information. d) four times the genetic information.