Recent Changes

Thursday, September 22

  1. 10:06 am

Friday, January 4

  1. page OriginofLife edited ... Another question that has puzzled scientist is the evolution of DNA and RNA. One hypothesis sc…
    ...
    Another question that has puzzled scientist is the evolution of DNA and RNA. One hypothesis scientist have come up with is: an abiotic stew of matter formed simple organic molecules. In time, RNA nucleotided formed from the simple organic matter. The RNA was able to replicate itself, synthesize protein, and funtion in information storage. From that the Proteins build cell stuctures and catalyze chemical reactions. The RNA helps in protein synthesis and finally, the DNA funtions in information storage and retrieval.
    {http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Dna-split.png/61px-Dna-split.png} Image shows DNA splitting. How did RNA play a role in the orgin of life? How did RNA play a role in the orgin of DNA?
    Page by: Big Matt
    (view changes)
    7:08 am
  2. page Fungi edited ... Ascus-The sacs in ascomycetes in which the sexual spores are formed. Conidia-Tiny spores form…
    ...
    Ascus-The sacs in ascomycetes in which the sexual spores are formed.
    Conidia-Tiny spores formed on tips of hyphae.
    Basidiomycota-Basidiomycetes- Club fungi.
    Deuteromycetes-Imperfect fungi. This phylum is composed of all those fungi that are not placed in other phyla because researchers have never been able to observe a sexual phase in their life cycles. Ex Penicillium
    Ecology of fungi-
    (view changes)
    7:08 am

Tuesday, January 1

  1. page InnateBehavior edited Innate behavior ... or instinct. Innate Innate behavior are ... innate behavior. Som…
    Innate behavior
    ...
    or instinct.
    Innate

    Innate
    behavior are
    ...
    innate behavior.
    Some of the simplest things are examples of innate behavior. Such as an adult female mammal nurturing its newborn offspring. Other forms of it can be very complicated. A spider spindling its web is actually a form of innate behavior.
    ...
    "genetic memories". {Humpback_stellwagen_edit.jpg} How do fish and other water creatures know how to swim when first born?
    (view changes)
    6:00 pm
  2. page InnateBehavior edited Innate behavior ghcgh Have you ever wondered how a dolphin knows how to swim instantly after bei…
    Innate behavior
    ghcghHave you ever wondered how a dolphin knows how to swim instantly after being born. Or how birds know where to migrate and how bears know when to hibernate. Well this is known as innate behavior or instinct.
    Innate behavior are in full capabilities the first time it happens. Even if the animal has had know previous experience with stimuli to which it responds. Reproduction, migration, hibernation, these are all examples of innate behavior.
    Some of the simplest things are examples of innate behavior. Such as an adult female mammal nurturing its newborn offspring. Other forms of it can be very complicated. A spider spindling its web is actually a form of innate behavior.
    All innate behaviors are dependent upon mechanisms inside that are created from interactions between an animal's genes and its environment. Biologists are still baffled as to how these kinds of interactions occur. My hypothesis is that possibly the memories from an animal's ancestor is encoded into the ancestors genes. The memories are then passed down through the genes of an animal giving it "genetic memories".

    (view changes)
    5:42 pm
  3. page InnateBehavior edited Innate behavior ghcgh
    Innate behavior
    ghcgh
    (view changes)
    5:21 pm

Friday, December 21

  1. page Amphibians edited ... Look on pg. 786 in our biology book for more information and a picture Nutrition A young am…
    ...
    Look on pg. 786 in our biology book for more information and a picture
    Nutrition
    A young amphibian such as a tadpole eats constantly. Tadpoles are usually filter feeders or herbivores. Tadpoles mainly eat algae. Adult frogs develop an apparatus and a digestive tract. Adult forgs are meat-eating amphibians. Almost all adult amphibians are carnivorous. The legless amphibians can only open and close their jaws to catch their prey. Frogs and Salamanders also have long, sticky tongues, which they use to capture their prey.
    (view changes)
    4:22 am

Thursday, December 20

  1. page Protists edited ... For food intake, Paramecium can also use its cilia, to pull the prey into its oral groove and …
    ...
    For food intake, Paramecium can also use its cilia, to pull the prey into its oral groove and then its gullet. The food then becomes a food vacuole and is digested.
    Paramecium produces asexually as well, by binary fission (Pg. 475 in Biology book) and also conjugation (Pg. 502 in Biology book)
    {plasmodium.jpg} This
    This
    Plasmodium is
    and is in the phylum Sporozoan.
    Trypanosoma and Plasmodium are parasitic
    ...
    Seaweed (Phaeophyta) can be used for toothpaste and even pudding
    Algae
    ...
    All algae gain nutrition by photosynthesis because they are autotrophic
    ...
    Chlorophyta - benefit Food web
    The volvox at the right is a colonial algae
    Diatoms - most abundant
    (view changes)
    6:23 pm
  2. page Protists edited ... This Amoeba is a flexible active Protist that is able to move freely by using Pseudopods and …
    ...
    This Amoeba is a flexible active Protist that is able to move freely by
    using Pseudopods and is in the phylum Sarcodine.
    ...
    amoeba takes in in prey
    ...
    food vacuole. They
    They
    would normally
    An amoeba is able to reproduce asexually by mitosis annd cytokinesis, which will result in an exact copy of its DNA in the offspring.
    Check out this link for the structure of a paramecium : http://www.vcbio.science.ru.nl/public/Final-Images/IL_Final512m_eng001-050/IL007_512m_engProtozoaCiliophoraParameciumPantoffeldiertje.jpg
    ...
    For food intake, Paramecium can also use its cilia, to pull the prey into its oral groove and then its gullet. The food then becomes a food vacuole and is digested.
    Paramecium produces asexually as well, by binary fission (Pg. 475 in Biology book) and also conjugation (Pg. 502 in Biology book)
    {plasmodium.jpg}
    Plasmodium causes malaria which
    produces severe chills and fever
    It
    This Plasmodium is a parasitic Protist.protist
    and is in the phylum Sporozoan.
    Trypanosoma and Plasmodium are parasitic

    The Plasmodium
    ...
    flow of blood, but cannot move on its own.
    They
    blood in an organism, the trypanosoma uses flagella
    Plasmodium
    reproduce by spores asexually ; Trypanosoma by Meiosis sexually
    {seaweed.jpg}
    Seaweed (Phaeophyta) can be
    Algae
    {Volvox.jpg} All algae gain nutrition by photosynthesis because they are autotrophic
    TheEuglena, Chlorophyta - Food web
    The
    volvox at
    ...
    colonial algae which contains
    Diatoms - most abundant
    Pyrrophyta - red tide, food poisoning
    Rhodophyta - argar, coral reefs
    Phaeophyta - food alginates, ice cream and pudding

    Algae consists of Euglenophyta, Bacillariophyta, Pyrrophyta, Rhodophyta, Phaeophyta, and Chlorophyta
    Want a quick simple way to remember those phylum?
    Try this on for size:
    Everyone (Euglenophyta)
    Bought (Bacillariophyta)
    Plenty of (Pyrrophyta)
    Red (Rhodophyta)
    Pinnapple (Phaeophyta)
    Cups (Chlorophyta)
    (view changes)
    6:18 pm

More