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  Taxonomy is the science of classifying and naming organisms. Taxonomy.

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Presentation on theme: "  Taxonomy is the science of classifying and naming organisms. Taxonomy."— Presentation transcript:


2   Taxonomy is the science of classifying and naming organisms. Taxonomy

3   The two-word scientific name for every species on Earth Binomial Nomenclature

4   Homo sapien (humans)  Homo is its genus  Sapien is its species Genus and species

5   Sula sula  Dicrurus fortificus  Tyrannus melancholicus  Elanoides forficatus Which would be closely related to Tyrannus fortificus ?

6   One way is by an organism’s life cycles, or how it grows and reproduces How do we define kingdoms?

7   Binary fission, which is essentially cloning  This is asexual reproduction asexual reproduction Archaebacteria and Eubacteria

8   If the environment is too harsh, the bacteria can form spores or cycsts  Both are forms of dormancy (remember that word?), which means life processes slow and no reproduction occurs Harsh environments

9   If bacterium reproduces ever 20 minutes, how many daughter bacteria will exist after 2 hours? Thought Question 1

10   Significant decomposers (heterotrophs)  They have many different ways of reproducing  1. Asexual reproduction  2. Sexual reproduction Fungi

11   Spore-flinging  They grow where they land and extend string-like structures called hyphae into the soil or whatever food source on which they land Asexual reproduction in fungi

12   When two hyphae meet, the cells fuse like in plant or animal fertilization  They then form sporgania to fuse the nuclei  The sporangia undergo meiosis and form haploid spores, which the fungus releases to grow again Sexual reproduction Sexual reproduction in fungi

13   What does it meant to say that the fungus is haploid? How does it differ from a diploid organism? Thought Question 2

14   Yeast reproduce asexually through budding- similar to binary fission, except the cell does not split in two budding-  The genetic material is copied multiple times, then split off from the parent to create many new, genetically identical “babies” Budding

15   These can include algae, mosses, ferns, and flowering plants  They have alternating haploid and diploid stages of reproduction  In every class the embryo is produced by the fusion of gametesfusion of gametes Plants

16  Angiosperms

17   If human embryos were triploid, how many chromosomes would each cell have? Thought Question 3

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