Name ___________________________________________________________________ Final Exam Practice Quiz Part I. True or False Marine Invertebrates: If the underlined word in the sentence makes the sentence false, please write the correct word on the line – that’s right DO NOT just write false, correct the sentence so that it is true by fixing the underlined word. 1. Periwinkle snails are bivalves. False, gastropods 2. Jellyfish are filter feeders. False, suspension feeders 3. Sea stars eat by using their 5 sharp teeth to chew algae and digest their food internally. False, pushing their stomachs out of their body and digesting their food externally 4. Nematocysts are only found in cephalopods. False, Cnidarians 5. Gastropod means “head – foot” and Bivalve means “spiny – skin.” False, Cephalopod and Echinoderm Part II: Multiple Choice – Fish Select the best choice to answer each question 1. Marathon fish usually have: A. Emarginate Caudal Fins B. Truncate Caudal Fins C. Rounded Caudal Fins D. Lunate Caudal Fins 2. If a fish is pelagic, then it is found _____________________. If a fish is benthic, then it is found __________________. A. Swimming near coral reefs, swimming near beaches B. Swimming on or near the bottom of the ocean, swimming in the middle of the ocean C. Swimming in the middle of the ocean, swimming on or near the bottom of the ocean D. Swimming at the very surface of the ocean, swimming in the mud 3. Fish increase the surface area of their gills with the following structures (Circle all that apply) A. Gill filaments B. Gill Rakers C. Lamellae D. Gill Arches 4. Sharks maintain buoyancy with their _________________ and bony fish use their ______________ for buoyancy. A. Swim bladder, Large oily liver B. Operculum, Gill Slits C. Large oily liver, Swim bladder D. Marching teeth, Tubular mouths Part III: Evolution and Natural Selection – Leaf Mimic Frog This species is found in Papua New Guinea. The pointed snout, projections over the eyes, and brown coloration enables this frog to blend into and hide in the leaves that litter the ground of the forest. Answer the following questions: 1.What adaptations does the leaf frog have? How will it help the frog survive? The leaf frog has a body shape and coloration that will camouflage it. This will help it survive, because it can effectively hide from predators so it won’t get eaten. 2.Orignially these frogs did not have these adaptations. How could natural selection and genes work to bring about these physical changes in the frog? How might it have evolved to look like this? At some point a frog was born with genes that coded for a phenotype that gave the frog the appearance of a leaf (brown coloration, body structures). This frog was better able to survive and reproduce than frogs that did not have this trait (Natural Selection). Over time, frogs that were better adapted to blend in and hide survived and reproduced, while frogs that did not have the genes for camouflage died off and did not pass down their traits. Soon, the leaf-­‐like traits were the most common in the frog population. Part IV: Diffusion – Explain what is happening in this diagram Diffusion is happening in this diagram. Diffusion is when molecules move from an area of high concentration to an area of low concentration (moving down the concentration gradient). The molecules are moving from the left to the right, because they are less concentrated on the right. Over time, the concentration on either side of the membrane will reach equilibrium. This process does not require energy. Part V: Taxonomy -­ Put the following levels of classification in order by writing 1 – 7 on the line. 1 is the MOST BROAD and 7 is the MOST SPECIFIC. 2 Kingdom 1 Domain 7 Genus 3 Phylum 4 Class 8 Species 5 Order 6 Family