A) explain how animal respiratory organs have evolved to increase diffusion rates by manipulating these variables: distance of diffusion, concentration gradient and area for diffusion. b) for each variable, provide –and explain- an example of an animals that has maximized it the most. use a different animal group for each example.

How can an organ, such as the lungs, work for multiple body systems?

The more rapidly sedimentation occurs, the more likely it is that the remains will successfully form a fossil. as sedimentation continues, what happens to the amount of weight settling onto the organism? stays the same increases decreases cuts in half

The image shows a sandstone formation with visible bands of different colors. what do the bands indicate about how this sedimentary rock was formed? choose two answers. a). the rock was made from more than one material. b). water was absent during the compaction and cementation process. c). sediments and other matter were deposited in layers before lithification. d). the rock was stretched horizontally by the pressure from surrounding rocks. e). layers of hot liquid in the rocks cooled and solidified at different tempatures