Welcome to Mr. D's online classroom. Above is a virtual calender of our class activities and due dates for you to check if you forget to write it down in class. Throughout the semester there will be topics for you to discuss (comment or question) weekly. You will be required to post your comments or questions at least once a week for a homework grade. All comments should pertain to the topic presensted by myself. Any inappropriate comments or questions will face steep consequences. This will be a fun and exciting way of utilizing technology to further our education about Biological topics. I look forward to reviewing all of your comments/questions on our first topic very soon.
Mr. D
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Mr. D
About Me
- DillmanScience
- A teacher whose love and enthusiasm for science shines through onto his students
14 comments:
i chose to reseach on global warming they said over the 100 years glabal warmin has increas dramaticly. .the cause of it happing rapidy is a lot of thing factory,cars... And the green house effect the next 65 years the tempertner could double or even quadruple causing the global average temperature to rise by at least 1 °C and possibly by more than 5 °C.. it has on effect on the whole world. espeacialy on the wild life (wild animals and plants).more than 80% of the species that show changes are shifting in the direction expected on the basis of known physiological constraints of species .the animals and plants have adapt to the cahange in climate over the history. but the rapid rate of change in the climate. cause damage to wild life like extinctions. this is my reseach i did.
michael kohn
4th peroid
http://md1.csa.com/partners/viewrecord.php?requester=gs&collection=ENV&recid=5539822&q=global+warming&uid=793093598&setcookie=yes
I choose to do my research on atoms.They said cold-ultra atom waves may lead to sophisticated atom lasers that might eventually predict volcanic eruptions on Earth. The atoms were manipulated to form tidy bundles of waves, known as solitons, which retained their shape and strength. Normally, when a wave forms whether in water, light or atoms it tends to spread out as it travels. It maintains its perfect shape without spreading. this concludes my research.
Andre Dorsey
3rd period
http://spaceflightnow.com/news/n0207/22atom/
My research is on an artificial bone created by engineers that blends into the tendons. The article is about engineers at Georgia tech that created a bone made from skin cells that can copy the body's ability to turn real bone into softer tissue; which could reduce the stress on the body and handle weight more successfully. They tested this by coating a polymer scaffold with a gene known as Runx2. They put high levels of runx2 at an end on the scaffold and gradually decreased until theres was none at the other end. Then they put fibroblasts into the scaffold frame. Fibroblasts are used as connective tissue in animals and play a key role in healing wounds. then they saw that at the end with high levels of runx2 turned into bone while the other end turned into tissue. supporting their hypothesis. with this knowledge they could possibly further advance the acl ligaments surgery.
Billy Hawkins
9/01/08
Per.4 Mr. Dillman Biology.
Url: http://www.biologynews.net/archives/2008/08/30/engineers_create_bone_that_blends_into_tendons.html
Jammer and skyline logging has little or no effect on erosion in central Idaho. A five-year investigation showed little or no difference in areas where logging took place compared to none logging land. Logging production increased sediment over the natural rate a little less than 0.6% logging roads; however, increased sediment about 750 times for a six year follow up of construction.
http://www.ingentaconnect.com/content/saf/jof/1972/00000070/00000003/art00007
Tia Renzulli
4th prd
I chose Biological Engineering as my topic. And As we all know alot of people are against this whole idea, however they dont know exactly the good this we benefit from it. For instance my mom happens to have type 1 diabetes and without insulin she would be dead. But with bio-engineering they are able to take insulin from dead bodies and engineer it for medical purposes. Also they are working on destroying any potential cancer. So Bio-engineering is rather neat-o!
http://www.nytimes.com/2006/01/17/science/17synt.html?_r=1&scp=4&sq=Biological%20Engineering&st=cse&oref=slogin
Whitney Vandevender
3rd period
i chose to do my research on salamanders.salmander is the common name for a group of 500 species of amphibians characterized by slender bodies, short noses, and long tails. They comprise the order Caudata. Salamanders have four front toes and their hind legs have five. Their moist skin usually makes them reliant on habitats in or near water, or under some protection often in a wetland. Some salamander species are fu lly aquatic throughout life, some take to the water intermittently, and some are entirely terrestrial as adults. All species lay eggs in water. Uniquely among vertebrates, they are capable of regenerating lost limbs, as well as other body parts. this is my information on salmanders
josh morton
3rd period
Mako Sharks
The Mako Shark is one of the fastest sharks in the ocean. It can swim up to 22mph and can jump up to 20 feet out of the water. They are about 5-8 feet long, they have a dark blue top with a white belly, and live from anywhere to 11-23 years. Mako sharks live in warm tropical waters worldwide. Their diet consists of fish such as: mackerels, swordfish, other sharks, porpoises and sea turtles. Female makos become sexually mature at 3m long, and the gestation period is 15-18 months. They can produce 4-18 eggs every 18 months after fertilization.
http://www.new-brunswick.net/new-brunswick/sharks/species/sfmako.html
http://www.sciencemag.org/cgi/content/summary/300/5623/1239
This article states that habitat fragmentation is one of the primary causes of the loss in biodiversity and ecosystems
the underlying processes and mechanisms are poorly understood
studies of islands other land habitats are essential for improving our understanding of this habitat fragmentation
they argue that the Three-Gorges Dam, which will be the largest dam ever created, presents a unique large scale natural experiment that allows ecologists to access a wide variety of crucial questions about biodiversity conservation.
We review the biogeography of microorganisms in light of the biogeography of macroorganisms. A large body of research supports the idea that free-living microbial taxa exhibit biogeographic patterns. It also supports that, as proposed by the Baas-Becking hypothesis, 'the environment selects' and is, in part, responsible for spatial variation in microbial diversity. Also leading that recent studies also dispute the idea that 'everything is everywhere'. The macroorganisms could also operate in the microbial world because of the processes that generate and maintain biogeographic patterns.
http://www.nature.com/nrmicro/journal/v4/n2/abs/nrmicro1341.html#top
Lacy Quinn
3rd period.
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