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Marine Biology Final
Exam final
| Question | Answer |
|---|---|
| Example of a Gastropod | snail |
| Example of a Bivalve | clam |
| Example of a Cephalopod | squid |
| What is the difference between an open and closed circulatory system? | in a closed the blood is on the outside, on the inside the blood goes throughout the entire body |
| What is a mantle? | sheath of tissue surrounding internal organs of a mollusk |
| Why does something molt? | an arthropod does it regularly to keep up with its growth |
| How does a starfish eat a clam? | It pushes part of its stomach into the clam |
| Why can a lancelet or tunicate be put into Phylum Chordata even though they are invertebrate? | because they have a notochord at some point during development |
| Say you are fishing in a freshwater lake and you catch a lamprey, why is this? | It travels to freshwater to reproduce |
| anadromous | A life cycle in which creatures are hatched in fresh water, migrate to salt water when adults, and return to fresh water in order to reproduce. |
| catadromous | Referring to fishes that migrate from fresh water to reproduce in the ocean |
| What do you think of when you here the words ostiocytes or ostioblasts | bony fish |
| Where is the caudal fin located on a sharks body? | tail fin |
| What is the difference between regular fishes teeth and a rays teeth? What do rays have instead of teeth? | Rays teeth have plates that crust their food |
| Tell the lifestyle and shape of a fish | demersal would be flat with eyes on top while a fish swimming in the water would have a different shape, more suitable for swimming |
| How can a fish actually feel things in the water? | lateral line, which is a sensory organ |
| Why do fish hangout in schools? | 1. for protection, 2. helps them to capture their prey |
| salt gland and example of marine mammal who has this | gets excess salt out of their bodes, Ex: sea turtle and sea birds |
| Sea turtles spend most of their time in the water so what is happening when you see a healthy female on shore? | most likely laying eggs |
| Find a heavy bone on the beach, what does this mean? | most likely didn't fly a lot, Ex: penguin; heavier bones help them to swim and dive under water |
| light weight and hollow bone is an example of what kind of bird? | flying bird |
| Baleen whales have heavy coarse hair for teeth used for what? | to filter plankton |
| What is the use of a dolphins melon? | it focuses and directs the clicks that a dolphin makes |
| discuss delayed implantation | When a mammal gets pregnant the embryo won't implant right away, the purpose is so they can wait to get to their breeding grounds |
| What is the purpose of camouflage? | to hide or to hunt, can be used for the prey or the predator |
| There will be a food web on the test, know what the secondary consumer is | bottom level: producers or autotrophs, algae, Primary consumer, Secondary consumer, Tertiary consumer |
| What are two things that are used to measure productivity or amount of photosynthesis? which is the better of the two? | Light and Dark technique and Radioactive Carbon technique (better of the two) |
| In the carbon cycle do decomposers increase or decrease the level CO2 in the water? | Decomposers are breaking down materials and CO2 is being released causing it to increase |
| In the nitrogen cycle understand that if someone suddenly added nitrogen fixing levels to the earth what would happen to nitrogen levels? | Organisms are taking nitrogen out of the air so levels would decrease |
| Photic zone | shallower waters that receive light (splash zone and inner shelf) |
| Aphotic zone | deep layers of the ocean that doesn't receive light (benthic zone and abyssal zone) |
| dorsal fin | on the back side and upper part of the sharks body |
| caudal fin | tail fin that helps the shark in steering |
| pectoral fins | gives a much needed lift in the water column |
| pelvic and anal fins | used for stabilization |
Created by:
a.allsup
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