Loxodonta cyclotis (African forest elephants). Their taxonomic hierarchy is as follows: Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Proboscidea Family: Elephantidae Genus: Elaphas Species: maximus Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Proboscidea Family: Elephantidae Genus: Loxodonta Species: africana Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Proboscidea Family: Elephantidae Genus: Loxodonta Species: cyclotis
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the status of this little known species. A population around the village of Ankinajao is already believed to have become extinct due to lots of logging‚ and its total range is now probably no more than 5‚000 square kilometres. Kingdom Animalia‚ Phylum Chordata‚ Class Mammalia‚ Order Primates‚ Family Indriidae‚ Genus Avahi Pig-footed Bandicoot Chaeropus ecaudatus Description Thought to now be extinct‚ the pig-footed bandicoot was a small‚ ground-dwelling marsupial. It had a short‚ stiff
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from the phylum arthopoda. Arthropods include more than 850‚000 species and form by far the largest phylum in the animal kingdom‚ exceeding in number all the other Phyla combined. The characteristic tough exoskeleton and jointed limbs are superimposed in a segmental body plan that reflects the evolution of arthropods from ancestors of the annelid worm. Insects‚ arachnids‚ myriapods and crustaceans are the major groups in this phylum (Nichols). Insects are the largest of this phylum and make
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Tapeworms are the dominant member of the class Cestoidea. They are ribbon-like‚ segmented creatures living in the intestines of their vertebrate hosts. There are a dozen orders in this class‚ most living in fish but two that use humans as hosts. Tapeworms cling to the intestinal wall of their hosts with suckers‚ hooks‚ or other adhesive devices. Having no mouth or gut‚ they receive their nourishment through their skin. Further‚ they have no type of sensory organs. White or yellowish in color‚ species
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delineation Locations within rocky shore sites support greater numbers of one species than others Vertical distribution Rock pool 3. Species List Organisms must be able to tolerate the physical stresses unique to this environment Animal Phylum Example Mollusca Periwinkle‚ mussel‚ smooth limpet‚ Striped limpet‚ Scaly limpet‚ Ribbed top shell‚ Chiton‚ Dog
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The discovery of the Comb jelly which was the first animal fossil was a shocking and unexpected event to most scientists in the world. Scientists had a specific view about evolution. They thought that organisms evolve from a simple state to a more complex state. But that was not the case for the comb jelly which unlike what scientist thought was a very complex specie. It was so complex that it had a nervous system and tissues. But that was not the only misconception that they had to face. Another
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Characteristics Skull of an Oriental giant squirrel (genusRatufa) - note the classic sciuromorphousshape of the anterior zygomatic region. Squirrels are generally small animals‚ ranging in size from theAfrican pygmy squirrel at 7–10 cm (2.8–3.9 in) in length and just 10 g (0.35 oz) in weight‚ to the Alpine marmot which is 53–73 cm (21–29 in) long and weighs from 5 to 8 kg (11 to 18 lb). Squirrels typically have slender bodies with bushy tails and large eyes. Their fur is generally soft and silky
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Cnidarians Cnidaria is a phylum containing some 11‚000 species of simple animals found exclusively in aquatic‚ mostly marine‚ environments. Cnidarians get their name from cnidocytes‚ which are special cells that carry stinging organelles. The corals‚ which are important reefbuilders‚ belong here‚ as do the sea anemones‚ jellyfish‚ sea pens‚ sea pansies and sea wasps. The names Coelenterata and Coelentera were once applied to the group‚ but those names included the Ctenophores‚comb jellies
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PRACTICE TEST Answer the following questions on a separate sheet of paper. 1. Which of the following levels would contain members that are the most similar to one another (the least amount of variation among members)? a. class b. kingdom c. phylum d. family 2. Evolution is a very controversial idea among both scientists and nonscientists. a. true b. false 3. In what family are humans classified? a. hominidae b. chordata c. primates d. Homo 4. What is the role of fossils in supporting
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UNIT I Diversity in the Living World CHAPTER 1 The Living World What is Living Diversity in the living world Taxonomic Categories Taxonomical Aids The living world is very wonderful. It contains wide range of life forms. 1.1 What is living – Living organisms are self-replicating‚ evolving and self-regulating interactive systems capable of responding to external stimuli. Living organisms exhibit following distinctive characteristics. All Living Organisms
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