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Study Guide

by: Naja McAdam

Study Guide 3305

Naja McAdam
GPA 3.08

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First set of lectures
BIOL 120-005 LEC
Richard A. Seigel
Study Guide
Readings, critter, brake
50 ?




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This 4 page Study Guide was uploaded by Naja McAdam on Friday September 16, 2016. The Study Guide belongs to 3305 at Towson University taught by Richard A. Seigel in Fall 2016. Since its upload, it has received 25 views. For similar materials see BIOL 120-005 LEC in Science at Towson University.


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Date Created: 09/16/16
Quiz 1 Thursday, September 15, 2016 9:34 AM Scientist and Non-scientist: A Failure to Communicate There is a gap between scientist knowledge and public  Climate change  Autism  Vaccines The reason for this gap is scientist have more curiosity and passion compared to the general public. Let it be known intellectual ability is not the difference you do not have to be a genius in order to be a scientist Scientific method - trained and organized common sense. It is a way to make sense of the complicated world Herd immunity - when exposed to a virus it cannot be spread because those who are vaccinated form a shield around the vulnerable Becoming a Rational Skeptic Rational skeptic - open to new concepts but wanting to see and evaluate evidence o Shampoo commercial Steps to becoming a skeptic include asking 1 What was the hypothesis/ question that was being tested 2 Does the author convince you that there are no obvious biases with the design a Who tested the products and who created them? Same company? Someone being paid? 2 Is there enough data to make a solid conclusion 3 Has the data been published and since then replicated by other scientist 4 Has the study been tainted Key Steps in Studying Biology 1 Observations and questions a The better(more specific) a question is the easier it is to study b SMALL STEPS not GIANT LEAPS 2 Hypothesis - a tentative but testable explanation for an experiment. a PHRASED TO DISPROVE b Science works by testing and falsifying hypothesis c If you can’t test it, you are not doing science 2 Test hypothesis - in the field or in a lab 3 Publication - communicating works to scientist community a 80% of work gets rejected 2 Theory - after hypothesis is tested, published, and ALWAYS found to be true a theory is developed Science can be subverted 1 Pressure from the government a Long history of support, pressure is put on scientist to modify data to fit government mentality 2 Pressure from industry a Biomedical practice is expensive. Research is funded by pharmaceutical companies drugs are tested twice by employees/ non- employees. There is almost always a non-disclosure agreement. Usually ethical problems arise 2 Fraud a Scientist falsify their own data for conclusions they want mainly in biomedical studies The origin of the Universe, Sun, Planet  The big bang theory is also known as the big balloon theory  All matter and energy in the universe was compressed in a tiny space  Then there was a massive expansion  The cause is unknown but it may be that the universe is cyclical as entropy ( going towards disorder)  When expansion stops the universe will collapse  "Critical Mass" is matter compressed into small areas  SUN (sol) formed from accumulation of dust hydrogen and helium gas through space at a fast rate  Clouds begin to gradually condense as gravity pulls particles together  Fusion reaction/ thermolecular reaction - dense clouds atoms collide and release heat at an increased rate. VERY VIOLENT  Light year - distance light travels in a year  Our star is recycled it is the third generation  First generation exploded as a nova or super nova ( fuse together to create higher order elements  Second generation made from material of first generation explosion from complex elements and compounds.  Planets formed from gas and dust clouds  Orbits around newly formed stars that never achieved energy to form a nuclear reaction  Began 4.6 billion years ago  Extremely high temperatures, hot interior surrounded by thin layer of solid matter  Release of nitrogen hydrogen helium methane oxygen and water vapor from interior  Cooler surface = outer crust  Oldest rock 3.98 billion years Critter Brake Turtles: Conservative Specialists Ranavirus: A new threat Ranavirus is a group of viruses that affects both reptiles and amphibians Over 50% of 100 box turtles we have been studying in Montgomery County have been killed, apparently by this virus The disease is similar to URTD, but is faster and appears to be more lethal Habitat loss (all species) Dangers  Emerging diseases (Upper Respiratory Tract Disease and Ranavirus)  Collecting for meat and pet trade  Commercial collecting especially bad, since turtle populations depend on long adult lifespans (99% of eggs taken by predators)  Many adults normally live 40-200 years, allowing chance to replace themselves before death, but not if adults collected for meat, pets, or shells  Unfortunately, commercial collecting still commo Softshell turtle (Aquatic) Note loss of hard shell, streamlined, webbing, even in Maryland Wood Turtle-Maryland (class visitor) Semi-aquatic: Lives in streams, woodlands Gopher tortoise (terrestrial) Note high domed shell, thick legs, no webbing Members of the Class Reptilia (snakes, lizards, crocs) o 3rd smallest group of reptiles, with only about 285 species o Seen as “conservative survivors”, as they have existed largely unchanged for 200+ million years o Basic character of the group is pretty simple, the presence of a shell formed from the girdles and the rib cage to protect the animal from predators o Many fossils available with some transitional forms o Have managed to adapt to living everywhere from land (tortoises) to freshwater (most turtles), to living in the sea (sea turtles)


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