Biology – Preliminary – Evolution of Australian Biota 1. Evidence for the rearrangement of crustal plates and continental drift indicates that Australia was once part of an ancient super continent identify and describe evidence that supports the assertion that Australia was once part of a landmass called Gondwana‚ including: ▪ − matching continental margins ▪ − position of mid-ocean ridges ▪ − spreading zones between continental plates ▪ − fossils in common on Gondwanan continents
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In each of the following questions‚ from the given alternative words‚ select the word which cannot be formed using the letters of the given word: 1. STIMULATION (A) STATION (B) NATION (C) MOTION (D) MOUTH Answer: (D) Explanation: There is no ?H? letter in the given word. Therefore‚ the word MOUTH cannot be formed. 2. Which letter in the word ?Vertex? should be changed to mean spiral movement ? (A) 1st (B) 2nd (C) 4th (D) Last Answer: (B) 3. If MONKO is coded as 57637‚ then how
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periodic‚ massive biodiversity losses classified as mass extinction events. The Permo-Triassic Extinction‚ 251 million years ago was the worst‚ devastating life in the sea and on land; vertebrate recovery took 30M years.[3]. The most recent‚ the Cretaceous–Tertiary extinction event‚ occurred 65 million years ago‚ and has attracted more attention than all others because it killed the nonavian dinosaurs.[4] The period since the emergence of humans has displayed an ongoing reduction in biodiversity
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Vision Star Oil’s vision is to be: the natural upstream oil and gas partner; navigating complexity‚ unlocking potential. The natural partner Star Oil recognizes that its partners and partnerships are valuable. The company understands and appreciates its partners’ circumstances‚ needs and goals‚ and delivers on given promises. Star Oil respects the individual‚ helps others to succeed and contributes to a positive working environment. Navigating Complexity Star Oil
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Types of aerial locomotion Animal aerial locomotion can be divided into two categories - powered and unpowered. In unpowered modes of locomotion‚ the animal uses on aerodynamics forces exerted on the body due to wind or falling through the air. In powered flight‚ the animal uses muscular power to generate aerodynamic forces. Animals using unpowered aerial locomotion cannot maintain altitude and speed due to unopposed drag‚ while animals using powered flight can maintain steady‚ level flight as
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Diversity of Life Concept 1.2 Organizing the diversity of life Diversity the hallmark of life So far about 1.8 million specie have been identified and named by biologists To this date‚ diversity of life includes at least 6300 species of prokaryotes 100000 fungi 290000 plants 52000 vertebrates 1 million insects Researchers add about 1000 more species each year Total number of species range from 10 million to over 100 million Grouping Species: The Basic Idea Taxonomy branch of biology
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EOSC INDIVIDUAL QUIZZES ! 1 BOB ZHAO Which form of energy is related to the distance an object moves times the force moving it? Student Response Correct Answer A. work B. latent heat C. potential energy D. power E. sensible heat Score: 1/1 2 EOSC INDIVIDUAL QUIZZES ! Which prefix used with units represents a billion? Student Response Correct Answer BOB ZHAO A. g B. b C. M D. B E. G Score: 1/1 3 EOSC INDIVIDUAL QUIZZES ! BOB ZHAO The speed at which wave energy propagates
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Evolution by natural selection is slow but can be observed in certain situations. How to spot evolution in real time: Artificial selection – manipulation by humans such as breeding dogs or growing corn. Repro-rate – rate of reproduction. Stochastic Event: unexpected disaster like a volcano eruption or tornado. (Research geological time) LIVING THINGS: Biology – Study of living things. Living things – all the organisms descended from a single-celled ancestor. * Characteristics:
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Animals * Animals * Multicellular * Heterotrophic * Eukaryotic * Develop from embryonic layers * Nutritional mode * Eat/ingest other living things or non living things * Ingest food and use enzymes in the body to digest it * Cell Structure and Specialization * Eukaryotic and multicellular * Lack cell walls but held together by collagen * Muscle and nerve cells (only in animals) * Helps to move and conduct nerve
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1.Introduction: Wildlife conservation is the practice of protecting wild plant and animal species and their habitats. Among the goals of wildlife conservation are to ensure that nature will be around for future generations to enjoy and to recognize the importance of wildlife and wilderness lands to humans. Many nations have government agencies dedicated to wildlife conservation‚ which help to implement policies designed to protect wildlife. Numerous independent non-profit organizations also promote
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