1. Other than being single-called, why can unicellular eukaryotes not be include
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1. Other than being single-called, why can unicellular eukaryotes not be included in either Kingdom Plantae or Kingdom Animalia? 2.Some unicellular eukaryotes do not have mitochondria, while others do. Can you assume that the a mitochondriate species are more primitive than those with mitochondria?________why or why not? 3.why is the cell differentiation exhibited by Volvox important to our understanding of the evolution of multi-called animals? 4. What adaptations( describe at least 2 ) do unicellular eukaryotes have for surviving harsh environmental conditions ( extreme temperatures, pH, etc.)? 5. What kinds of eukaryote is responsible for a “red tide “?_____________________. Why do oceanic red tides pose a danger to humans even if humans are not swimming in the ocean? 1. Other than being single-called, why can unicellular eukaryotes not be included in either Kingdom Plantae or Kingdom Animalia? 2.Some unicellular eukaryotes do not have mitochondria, while others do. Can you assume that the a mitochondriate species are more primitive than those with mitochondria?________why or why not? 3.why is the cell differentiation exhibited by Volvox important to our understanding of the evolution of multi-called animals? 4. What adaptations( describe at least 2 ) do unicellular eukaryotes have for surviving harsh environmental conditions ( extreme temperatures, pH, etc.)? 5. What kinds of eukaryote is responsible for a “red tide “?_____________________. Why do oceanic red tides pose a danger to humans even if humans are not swimming in the ocean? 2.Some unicellular eukaryotes do not have mitochondria, while others do. Can you assume that the a mitochondriate species are more primitive than those with mitochondria?________why or why not? 3.why is the cell differentiation exhibited by Volvox important to our understanding of the evolution of multi-called animals? 4. What adaptations( describe at least 2 ) do unicellular eukaryotes have for surviving harsh environmental conditions ( extreme temperatures, pH, etc.)? 5. What kinds of eukaryote is responsible for a “red tide “?_____________________. Why do oceanic red tides pose a danger to humans even if humans are not swimming in the ocean?Explanation / Answer
1)unicellular eukaryotes involves in protista kingdom in 5 kingdom classification.They are different because they are organisms which are unicellular or unicellular-colonial and which form no tissues.They have paraphyletic pattern of similar appearing but diverse biological groups and these biogical groups do not have an exclusive common ancestor beyond being composed of eukaryotes, and they have different life cycles, modes of locomotion, trophic levels and cellular structures. Thats why classified differently.
2) This was generally believed initially that all eukaryotes had mitochondria and belive that serial endosymbiosis theory was correct.The endosymbiosis theory required one main thing that was existence of eukaryotes without mitochondria. Archezoa hypothesis was disproven after that stated primitive eukaryotes were of premitochondrial descent. This paradoxically defined group of amitochondriate eukaryotes has significantly changed our perception of the role of mitochondria in overall cellular metabolism and our understanding of the origin of eukaryotic life.So we can assume that mitochondrial species are more primitive.
3)Volvox exhibits multicellularity. It has two cell types, and these cells are not organized into tissues or organs.scientist David Kirk compared the developmental programs of Volvox, Chlamydomonas, and various other volvocine algae and he concluded that twelve new developmental traits evolved in Volvox that its unicellular ancestor did not possess. Volvox exhibits embryo inversion which is a morphogenetic process that is similar to animal gastrulation and that possesses the flagellar ends of somatic cells at right position following cell division. Volvox embryos also has a specialized type of cell division that develop cells of different sizes and types, called asymmetric division so Volvox makes specialized cell types which are terminally differentiated somatic cells and stem cell-like gonidia. Thats why its evolution is so important.
4)Contractile Vacuole,cilia,flagella,pseudopod are various adaptations
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