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mrs. b.

SIRS: Coalition Urges Tighter Controls on 'Extreme Genetic Engineering' - 0 views

sks.sirs.com/...hst-article-display

shared by mrs. b. on 25 Apr 13 - No Cached
    • mrs. b.
      mrs. b. on 25 Apr 13
       
      genetic engineering has existed for 40 years
Katie S

The Six Kingdoms - 0 views

www.ric.edu/...Index.htm

classification

shared by Katie S on 21 Feb 13 - Cached
  • Katie S on 21 Feb 13
     
    What a great visual summary of the kingdoms
Gabriela R

Kingdom Fungi - Types, Characteristics, Examples, Pictures of Fungi | Healthhype.com - 0 views

www.healthhype.com/xamples-pictures-of-fungi.html

Fungi

shared by Gabriela R on 20 Feb 13 - No Cached
  • multicellular molds and mushrooms.
  • unicellular yeasts
  • beneficial: they decompose dead organisms, they can be used in production of food, they are part of normal human flora. Other fungi are pathogenic, meaning they may cause diseases (mycoses) in plants, animals and human. Certain fungi, like Candida albicans, can be beneficial when present in small amounts in body tissues, but can overgrow in certain circumstances, like low immunity and become harmful (opportunistic fungi).
  • ...16 more annotations...
  • Types of Fungi
  • 1. Yeasts
  • 2. Molds
  • 3. Mushrooms
  • tubular threads called hyphae through which they absorb nutrients. Hyphae may branch and form mycelium.
  • Examples:
  • Saccharomyces cerevisiae
  • Saccharomyces boulardii
  • Pityrosporum ovale
  • Candida albican
  • Cryptococcus neoformans
  • Common genera are:
  • Penicillium
  • Aspergillus
  • Rhizopus
  • Mucor
Katie S

VIRUSES - 0 views

leavingbio.net/viruses webpage.htm

viruses

shared by Katie S on 01 Feb 13 - No Cached
  • Katie S on 01 Feb 13
     
    A virus will replicate many times when it invades a host cell. There are 4 stages involved in this process:   1.                Attachment: The virus attaches to a host cell. In the case of the bacteriophage it will attach to a bacterium. 2.                Entry: The virus forms a hole in the membrane or cell wall of the host. The nucleic acid of the virus enters the host cell. 3.                Synthesis: The virus' nucleic acid is used to make new viral nucleic acid and proteins for the new viruses being produced. (The host cells' DNA becomes deactivated.( 4.                Assembly: New viruses are made inside the host cell. 5.                Release: The host cell bursts to release the new viruses. The bursting is called lysis.
Katie S

Biology4Kids.com: Microorganisms: Bacteria - 2 views

www.biology4kids.com/...micro_bacteria.html

bacteria

shared by Katie S on 22 Jan 13 - Cached
  • there are three basic shapes.
  • Spherical bacteria
  • little spheres or balls. They usually form chains of cells like a row of circles.
  • ...10 more annotations...
  • look like the E. coli
  • Rod shaped bacteria
  • hot dogs.
  • Spiral shaped bacteria twist
  • corkscrew.
  • WHAT DO THEY LOOK LIKE?
  • Bacteria are the simplest of creatures that are considered alive.
  • very simple cells that fall under the heading prokaryotic. That word means they do not have an organized nucleus. Bacteria are small single cells whose whole purpose in life is to replicate.
  • They do have DNA. It is grouped in an area called the nucleoid. They have cell membranes like other cells and even a protective cell wall. Mind you, their cell wall is not like the one in a plant. It's a special kind that bacteria have for protection. They don't have any organelles, just ribosomes.
  • Some help plants absorb nitrogen (N) from the soil. Some cause diseases like botulism. Some bacteria even live inside the stomachs of cows to help them break down cellulose.
Katie S

NOVA | Classifying Life - 2 views

www.pbs.org/...classifying-life.html

classification interactive

shared by Katie S on 22 Jan 13 - Cached
  • Scientists organize all of Earth's life forms into a hierarchy that begins with kingdom and works down into phylum, class, order, family, genus, and species. (To remember these categories, think "King Philip Crossed Over For Gold and Silver—a mnemonic referring to 16th-century Spanish exploration.) In this feature, step into the shoes of a taxonomist and classify three forms of life: a plant, an animal, and a...well, you'll need to figure that one out for yourself. Launch Interactive Try your hand at classifying three life forms and learn about taxonomy.
    • Katie S
      Katie S on 22 Jan 13
       
      Click on Launch the Interactive to try the Classification Game. Be careful it gets difficult! :)
Katie S

Classification of Living Things - 1 views

www.windows2universe.org/...ssification_intro.html&edu=mid

shared by Katie S on 21 Jan 13 - No Cached
  • Beginner Intermediate Advanced
    • Katie S
      Katie S on 21 Jan 13
       
      You can change the reading level on this website. Change to the level you are comfortable with and understand.
Katie S

Classification of Living Things - 9 views

www.windows2universe.org/...classification_intro.html

classification

shared by Katie S on 21 Jan 13 - Cached
  • Scientists have found and described approximately 1.75 million species on Earth. Plus, new species are being discovered every day. From tiny bacteria to yeasts to starfish to blue whales, life's diversity is truly impressive! With such a diversity of life on Earth, how does one go about making sense of it all?
    • Katie S
      Katie S on 22 Jan 13
       
      This website allows you to change the reading level. Choose the level that fits you and that you can understand.
  • One way to make sense of it is by classification. Scientists put similar species into groups so that those millions of species do not seem so overwhelming. People rely on their knowledge of classification to understand what different species are like.
  • Living things are divided into three groups based on their genetic similarity. The three groups are: Archaea: very ancient prokaryotic microbes. Eubacteria: More advanced prokaryotic microbes. Eukaryota: All life forms with eukaryotic cells including plants and animals These three groups are called domains
  • ...3 more annotations...
  • The figure at the left shows the three domains of life. The distance between groups indicates how closely related they are. Groups that are close together, like plants and animals, are much more closely related than groups that are far apart, like plants and bacteria. Do you see how the two types of microbes, Archaea and Eubacteria, are about as similar to one another as they are to animals? Recent studies have found that microbes are far more diverse than anyone had suspected.
  • The Eukaryota domain is divided into several groups called kingdoms. Kingdom Protista – Organisms with just one eukaryotic cell Kingdom Fungi – Including mushrooms and other fungus Kingdom Plantae – Including trees, grass and flowers Kingdom Animalia – From snails to birds to mammals like you!
  • Within each kingdom, species are further classified into groups based on similarities. For example, the full classification of a human is: Domain Eukarya Kingdom Animalia Phylum Chordata Subphylum Vertebrata Class Mammalia Order Primates Family Hominidae Genus Homo Species sapiens
  • Katie S on 21 Jan 13
     
    Explanation of how living things are classified
Dinah M.

How Fish Evolved to Climb Waterfalls With Their Mouths - 1 views

news.nationalgeographic.com/...eird-animals-science-evolution

shared by Dinah M. on 07 Jan 13 - No Cached
  • How Fish Evolved to Climb Waterfalls With Their Mouths
  • uses suckers in its mouth and belly to move up steep cliffs in its rugged Hawaiian habitat.
  • Because its freshwater habitat is easily disturbed—by a big storm, for instance—the fish often crawl up waterfalls to return upstream.
  • ...6 more annotations...
  • fish uses the same movements to climb as it does to eat algae.
  • The Nopili rock-climbing goby has two suckers for climbing.
  • This suggests that, at some point in its evolution, the Nopili rock-climbing goby repurposed one behavior for another
  • There the scientists filmed them feeding on algae-covered glass and—stimulated by falling water—climbing.
  • the team concluded that the fish uses the same overall movements
  • Though it's still unknown which behavior came first, the end result is a perfectly adapted fish
  • Dinah M. on 07 Jan 13
     
    Current Events
Katie S

World Climates - 8 views

www.blueplanetbiomes.org/climate.htm

Biomes latitude

shared by Katie S on 12 Nov 12 - Cached
  • Katie S on 12 Nov 12
     
    This website will help you find the latitude lines for your biome.
Katie S

World Climate: Weather rainfall and temperature data - 12 views

www.worldclimate.com

Climate Data Biomes

shared by Katie S on 12 Nov 12 - Cached
  • Katie S on 12 Nov 12
     
    Use this website to find the average monthly temperature and average monthly rainfall for a city in your biome.
Katie S

MBGnet - 6 views

www.mbgnet.net

Biomes

shared by Katie S on 12 Nov 12 - Cached
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