called Gondwana‚ including: ▪ − matching continental margins ▪ − position of mid-ocean ridges ▪ − spreading zones between continental plates ▪ − fossils in common on Gondwanan continents‚ including Glossopteris and Gangamopteris flora‚ and marsupials ▪ − similarities between present-day organisms on Gondwanan continents Plate tectonics is the study of the movement of crustal plates. The lithosphere consists of the crust and the upper mantle and is divided into several major plates. Plate
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Penis (plural penises or penes) is a general term for the organs with which male and hermaphrodite animals introduce sperm into receptive females during copulation. Such organs occur in many animals‚ both vertebrate and invertebrate‚ but males do not bear a penis in every animal species‚ and in those species in which the male does bear a so-called penis‚ the penes in the various species are not necessarily homologous. For example‚ the penis of a mammal is at most analogous to the penis of a male
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The rabbit bandicoot also known as the Biliby is endangered‚ and has been for eight years. It has been vulnerable to the environment for three years. They are endangered because feral cats and other larger animals hunt them. Also‚ there is competition between other animals for food. Another reason why they are endangered is because of land clearing and livestock grazing habits the grasslands are disappearing‚ which is where the Bilibies live. It is important to save these animals because they used
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sea floor spreading. Oceans and continents form plates which move over the asthenosphere Plate tectonics: study of movement of crustal plates (6) Fossils in common on Gondwanan continents‚ including Glossopteris and Gangamopteris flora‚ and marsupials Fossil: trace or remains of past lie Mature seeds of glossopteris are too big to be dispersed by wind across oceans Similarities between present-day organisms on Gondwanan continents Examples include the beech tree‚ Nothofagus and flightless
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move on and then years after the soil above collapses upon itself and it falls creates large dips in the soil which causes the Australian government millions to repair this colossal threat. Refer to “1a”. This in fact harmed a lot of the native marsupials in Australia as they need grass to survive. This is a graph of how concerned people are of the traits rabbits do to the local environment…… …….. These creatures can destroy topsoil which is a need in having healthy plants and crops. Top soil is
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The theory of evolution says that the existence of homologous structures adapted to different purposes as the result of descent with modification from a common ancestor. There is a lot of evidence for the theory of evolution. Some might be fossil record‚ embryology‚ comparative anatomy‚ molecular biology‚ and biography. Darwin was one of the first people to try to figure out what evolution is. He did a lot of research and experiments to find out if evolution is real or not. He even went on a voyage
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The Mammalian Urogenital Lab Questions 1. The urine needs to be stored in egg-laying animals so that the fetus is not trapped in pools of urine inside of the egg. This keeps the urine separate from the fetus and its nutrients. 2. The fetuses of mammals that bear their young alive do not need a urine sac and does not form urine because all of the fetuses waste is taken out through the mother either through the placenta or the umbilical cord. 3. The testes are separated from the abdominal
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Australian Ectotherms and Endotherms- temperature regulation Part A :Types of Temperature regulation 1. Write down the meaning of the terms endotherm and ectotherm. Consult a textbook if necessary. a. endotherm Endotherms are animals that can maintain a constant internal body temperature. For instance mammals and birds are true endotherms that can maintain a constant internal body temperature b. ectotherm Ectotherms are animals that are not able to regulate their body temperature or in simple
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Animals do not have cell walls‚ but do generally are multicellular‚ reproduce sexually and have gap junctions. Animals are ingesting heterotrophs; fungi have absorptive nutrition. Development order: fertilization‚ cleavages‚ blastula‚ gastrula and metamorphosis. Ancestor of animals: protozoa (choanoflagelate) Know Animal Taxonomy including Lophotrocozoa!!!! Only animals have hox genes Sponge=perifera=parazoa=lacks true tissue Eumetazoa=everything besides sponge Cephalization=sensory organs
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Reproductive system From Wikipedia‚ the free encyclopedia This article is about Sexual Reproduction. For Non-Sexual Reproduction‚ see Asexual reproduction. "Female reproductive system" redirects here. For the human female reproductive system‚ see Human female reproductive system. "Male reproductive system" redirects here. For the human male reproductive system‚ see Human male reproductive system. |Reproductive system | |[pic]
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