4. Examine the species available in lab, along with three of...

4. Examine the species available in lab, along with three of your own choice, and fill out the character state table. Use the five pre-selected characters and then choose three of your own. 1. Halobacterium salinarum 2. Pyrolobus fumarii 3. Acidithiobacillus ferrooxidans 4. Prochlorococcus marinus 5. Dictyostelium discoideum 6. Cyanidioschyzon 7. Saccharomyces cerevisiae 8. Aspergillus 9. Physcomitrella patens 10. Arabidopsis thaliana 11. Caenorhabditis elegans 12. Drosophila melanogaster 13. Mus musculus 14. (Choose your own adventure!) 15. (Choose your own adventure!) 16. (Choose your own adventure!) Character Eukaryotic cells Cell wall (any) Cellulose cell wall Photosynthesis Multicellular Unicellular (your choice) cell membrane (your choice) organelles (your choice) 6. Use your character table to create a phylogenetic tree. Attach it :)

Transcript

00:01 Hello students today we have to select three species of our own which we can preserve in our lab settings and we have to determine some of their features so today we have selected three important species and before going into those species we need to understand what species means species is basically a group of individuals who have the same morphos of behavior and can reproduce with each other to produce fertile offspring so the first one is vibrio caldray it's a bacteria which causes cholera and this vibrio colorei is a comma -shaped so its external morphology is comma -shaped it looks comma -shaped in the external morphology so as far as the cellular structure is concerned these vibrio coli since they are bacteria they are unicellular and when we mean they are unicellular they have prokaryotic mode of cellular organization and when we say that they have prokaryotic mode of cellular organization they since they are bacteria they have a cell wall and as far as the prokaryotic cell organization is concerned they lack a well -defined nucleus and the chromosome is and there is no chromosome but a single coil dna molecule which is called as nucleoid present at the center of the cell they lack well -defined membrane bound intracellular organals but contain ribosomes and those ribosomes are 70s ribosomes as opposed to eukaryotic ribosome and they reproduce by asexual mode of reproduction that is binary fission so gametes are not produced so these are some of the typical features of vibrio collary the second species which we have selected is atlantic salmon this atlantic salmon is also called as as far as its zoological name is concerned salmo cellar this selmo cellar has some typical features since we know they belong to the phylum core data they are definitely eukaryotic they obviously are multicellular because most of the eukaryotic organisms are multicellular and they reproduce by sexual modes of reproduction that means gametes are produced they have well -defined organ systems like digestive system circulatory systems so they have well -defined organ systems and they live in fresh water as well as marine water and involve an important feature called a spawning in spawning uh what happens they spend some of their initial time in the freshwater and then migrate to the oceans the third species which we have selected is called as agaricus bisporus agaricus bisporus is commonly called as button mushroom this button mushroom as we can see it's basically edible belongs to the phylum or kingdom fungi and they are they are eukaryotic multicellular and they reproduce via spores.

04:13 They lack chlorophyll and hence cannot carry out photosynthesis.

04:17 So these are some of the important features of these three species...

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