external fertilization eggs + milt Amphibia Amphibians (2 lives) frogs & toads (tailless) salamanders & newts born in water‚ adult lives on land (~ water); feet often webbed larva herbivorous+gills adult carnivorous+lungs thin‚ secretes mucus many breathe through it sensitive to pollutants frog tongue has sticky end to catch food; eyes drop down to swallow 3 chambered heart aquatic ~ gills & skin land ~ lungs & skin frogs & toads have long hind limbs for jumping external fertilization frog - amplexus
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Animal extinction Animal extinction has been dramatically occurring and this is the biggest issue in the planet. The governments and scientists try to figure out the better ways to prevent and preserve the disappearance of animals. Human attitudes‚ degradation of nature and climate change are the causes that lead to animal extinction. I think that if these causes are still occurring without protection and preservation‚ the environment will become in less healthy state by 2050. The world human population
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animals is also available. Streamlining the Research Workflow With Ready-To-Use Primary Neuronal Cells •Ready to Use primary neuronal cells‚ shipped direct to your laboratory‚ fundamentally advances the way you can do R&D •No more tissue dissection and animal handling •These primary neuronal cells have a high viability and the same properties as equivalently cultured fresh neuronal cells •Batch tested and guaranteed high quality‚ the cells come with optimized culture protocols •Batch
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The extinction of an animal species occurs when the last individual member of that species dies. Although a species may be "extinct in the wild‚" the species is not extinct until every individual‚ regardless of location‚ captivity‚ or ability to breed‚ has died. Extinction of Animals Causes There are several causes of extinction of several animal species‚ prominent among which are loss of habitat‚ extinction of animals due to deforestation‚ extinction of animals due to global warming‚ extinction
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version of that question‚ and his response to the challenge is marvelous. To escape his confinement‚ Wyrm dupes Senex into fathering Cockatrice — a mythical half-chicken‚ half-serpent creature hatched from an egg laid by a rooster and incubated by a toad. Evil and powerful‚ Cocatrice enslaves Senex’s subjects and abuses Senex’s harem of hens‚ forcing them to breed him an army of basilisks. The land is polluted and ruined‚ and when the animals finally revolt‚ it is far too late. Their opposition is
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one requires. Although the sin focuses mostly on the consumption of food‚ it also relates to the pleasures that the body experiences. The punishment for committing the sin of gluttony is that you after your death‚ you will be force-fed snakes‚ rats‚ and toads. The animal that represents the sin of gluttony is the pig‚ and the color that represents it is orange. There are five different ways in which the sin of gluttony can be committed. There is Prae-propere‚ which is eating too soon. Secondly there
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fleas on the rats‚ so they believed in false cures and false causes. For example‚ some people thought God was punishing them for being sinful. Giovanni Filippo‚ a Sicilian physician‚ thought pest houses were needed to quarantine the infected‚ people who violate health regulations should be executed in order to frighten others‚ and that bonfires were needed to eliminate the infected. In his The Reform of Medicine‚ H. de Rochas‚ a French physician‚ saw many plague-stricken patients hang toads around their
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Hong Kong Diploma of Secondary Education Examination Biology and Combined Science (Biology part) School-based Assessment Sample Tasks Teachers may use the sample tasks for non-profit making educational and research purposes with proper acknowledgement. ©香港考試及評核局 保留版權 2009 Hong Kong Examinations and Assessment Authority All Rights Reserved 2009 HKDSE Biology SBA Practical Task: Topic: I (e) Presence of protease in pineapple and / or kiwifruit Scenario: Last week‚ Mary prepared some jelly
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adult healthy female rats weighing 190 20g and 10 young (6-7) weeks –old male albino rats from which bone marrow mesenchymal stem cell (MSCs) were isolated. Animal were purchased from the animal house of the faculty of Medicine Mansoura University. The animals were housed in standard stainless steel cages at room temperature 25-28ﾟC‚ humidity of (50-60%) and maintained at 12 hrs alternating day and night cycle. The rats were fed standard pellet diet and water ad libitum. The rats were acclimatized
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as a teacher or a lab technician must present. In these labs children are in habit of messing with things. They try to experiment mixing every solution they can find. So regular vigilance is required on each student. Similarly while doing dissection of rats in biology labs‚ from time-to-time guidance is required by
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