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Life in the Ocean

by: Daniel Martchek

Life in the Ocean MSC101

Daniel Martchek
GPA 3.1
Survey of Oceanography
Mr. Jorge Willemsen

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About this Document

Here are the notes from the classes revolving around the chapter 'Life in the Oceans'
Survey of Oceanography
Mr. Jorge Willemsen
Class Notes
25 ?




Popular in Survey of Oceanography

Popular in Marine Science

This 2 page Class Notes was uploaded by Daniel Martchek on Wednesday April 22, 2015. The Class Notes belongs to MSC101 at University of Miami taught by Mr. Jorge Willemsen in Spring 2015. Since its upload, it has received 53 views. For similar materials see Survey of Oceanography in Marine Science at University of Miami.


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Date Created: 04/22/15
Life in the Ocean Energy potential to do work Thermodynamics the study of heat and how its transformed into mechanical energy Macroscopic descriptors of matter such as temperature pressure and volume Entropy A measure of the degree or order in a given system 2nCI law of Thermodynamics Entropy increases as a function of time 0 Loss of entropy due to organization is offset by gain in entropy in the form of heat produced The Working de nition of a living organism Capable of capturing and storing energy Transforms energy and increases entropy through release of heat Capable of reproducing Capable of adaptation All life forms are made up of cells 0 Cells have a semipermeable membrane 0 Contains genetic materials that do speci c tasks Mitochondria process energy 0 Come from female lineage 0 DNA 0 Double helix of 4 blocks that bind that can replicate o The A G CT alphabet contains blueprints for production of proteins Viruses can contain strands covered in a membrane Factors affecting marine life 0 Photic zone layer of water that light penetrates o Euphotic zone marine plants trap more energy than they use 0 Up to 40m deep in midlatitudes 0 Only 2 of oceans o Waves and currents stir up sediments block out light 0 Phytoplankton block out light Temperature 0 Metabolic rate at which energyreleasing reactions take place in an organism Doubles with 10C rise 0 Mechanism heat brings nutrients together faster Coldblooded animals have internal temp close to external temp o Sensitive to heat Too hot less oxygen is stored 0 Less sensitive to cold Too cold become sluggish can freeze Slower metabolismgt grow slower bigger and live longer Warm blooded animals maintain constant internal temperature 0 Require energy expenditure to stay cold 0 Adaptation to warm blood allows them a larger range Structural support issues are different in land and sea based life forms Buoyancy helps reduce the demand of maintaining structural integrity Special mechanisms are developed Reynolds number a dimensionless ratio that is indicative of the relative importance of inertia to viscosity ReUDv


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