Biology Subject for High School_ Darwin's Theory of Natural Selection by Slidesgo.pptx
superdman89
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57 slides
Mar 02, 2025
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About This Presentation
biology again but its abt high school
Size: 10.85 MB
Language: en
Added: Mar 02, 2025
Slides: 57 pages
Slide Content
Biology Subject for High School: Darwin's Theory of Natural Selection Here is where your presentation begins
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T able of contents You can describe the topic of the section here You can describe the topic of the section here You can describe the topic of the section here You can describe the topic of the section here You can describe the topic of the section here You can describe the topic of the section here 01 04 02 05 03 06 Origin Variation Adaptation Selection E xamples Exercises
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Introduction to Darwin's theory Mercury takes a little more than 58 days to complete its rotation, so try to imagine how long days must be there! Since the temperatures are so extreme, albeit not as extreme as on Venus, Mercury has been deemed to be non-habitable for humans Mercury is the closest planet to the Sun and the smallest one in the entire Solar System. Contrary to popular belief, this planet's name has nothing to do with the liquid metal. Mercury was, instead, named after the famous Roman messenger god Mercurius
The origins of Darwin's theory Do you know what helps you make your point crystal clear? Lists like this one: They’re simple You can organize your ideas clearly You’ll never forget to buy milk! And the most important thing: the audience won’t miss the point of your presentation
Variation: the key to natural selection Venus has a beautiful name and is the second planet from the Sun. It’s hot and has a very poisonous atmosphere Mercury is the closest planet to the Sun and the smallest one in the Solar System—it’s only a bit larger than the Moon Variation patterns Adaptive traits
Shaping species over time Mercury is the closest planet to the Sun and the smallest of them all Venus has a beautiful name and is the second planet from the Sun Despite being red, Mars is actually a cold place. It’s full of iron oxide dust Genetic Variation Survival Competition Evolutionary Change
Fossils and evidence of evolution Mars is actually a very cold place Venus has extremely high temperatures Jupiter is the biggest planet of them all Saturn is a gas giant and has several rings Fossils Anatomy Forms Biogeography
Venus has extremely high temperatures Neptune is the farthest planet from the Sun Darwin's fundamental concept Mars is actually a very cold place Mercury i s the closest planet to the Sun Saturn is a gas giant with several rings Jupiter is the biggest planet of them all Variation Adaptation Competition Selection Survival Evolution
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Jupiter’s rotation period 9 h 55m 23s 333,000 The Sun’s mass compared to Earth’s 386,000 km Distance between Earth and the Moon
Mercury is the closest planet to the Sun and the smallest of them all Camouflage Venus has a beautiful name and is the second planet from the Sun Warning Despite being red, Mars is actually a cold place. It’s full of iron oxide dust Batesian Mimicry: nature’s survival strategy 50% 75% 25%
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Darwin's theory of natural selection Diversity and natural selection Mercury is the closest planet to the Sun and the smallest one in the Solar System. This planet’s name has nothing to do with the liquid metal, since Mercury was named after the Roman messenger god
Milestones in natural selection Birth of Charles Darwin 1809 Voyage of HMS Beagle 1831 Reading of "Essay Concerning" 1838 Publication of "The Origin of Species" 1859 Discovery of the structure of genes 1868 Publication of "The Descent of Man” 1871 Death of Charles Darwin 1882 Present time 2XXX
Competence A process of change Natural selection Change Selection Atmosphere Mars is a red planet Mercury is very small Venus is a hot planet Jupiter is a gas giant
Aspects of natural selection Aspect Definition Examples Variability Diversity of traits present in a population Different shell colors in a turtle population Adaptation Inherited traits that improve survival and reproduction Longer, slender beak in the finches of the Galapagos Islands Competence Fight for limited resources in an environment Dispute between male lions for access to females Selection Process by which certain traits are favored or selected for Selection of pale butterflies in industrialized areas due to camouflage in dark trees
Frequency change in a population Follow the link in the graph to modify its data and then paste the new one here. For more info, click here Mercury is the closest planet to the Sun and the smallest of them all Venus has a beautiful name and is the second planet from the Sun Initial frequency Frequency evolution
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Understanding natural selection Response type Survival advantages Transmission C amouflage Write what advantage this type of response gives Write here how to transmit it to other generations F light capacity Write what advantage this type of response gives Write here how to transmit it to other generations Toxin resistance Write what advantage this type of response gives Write here how to transmit it to other generations Ability to obtain food Write what advantage this type of response gives Write here how to transmit it to other generations Try to fill each of the cells
Investigating adaptations Identify how the adaptations shown below help animals survive in their specific environment Bird Chameleon Write here the answer… Write here the answer… Husky Write here the answer…
Comparative analysis of adaptations Environment Beneficial adaptations Rain forest Desert Mountains Ocean Camouflage A gility Night vision Drought tolerance Ability to water Cold adaptation Thick coat Diving ability Place the concepts below in the corresponding place
Simulating natural selection Group A Group C Group B Fins adapted for swimming, layer of subcutaneous fat to maintain heat, highly developed senses, such as hearing Wings adapted to fly, efficient respiratory system, hollow and light bones Long and deep roots , ability to store water, leaves covered with wax or hairs Arctic environment Coastal environment Hilly environment Match with the living being you think is correct
Biography of Darwin Charles Darwin Father of the Theory of Natural Selection Name: Charles Darwin Life: 1809-1882 Nationality: British Occupation: Naturalist Education: Christ's College Voyage on HMS Beagle (1831-1836) Research and writing Publication of "The Origin of Species" (1859) Reading of "Essay Concerning Population" Key points of his life "The Descent of Man and the Selection in Relation to Sex" (1871) "The Origin of Man and Selection in Relation to Sex" (1871) Notable writings
Evidence for natural selection Venus has extremely high temperatures Neptune is the farthest planet from the Sun Mercury is the closest planet to the Sun Saturn is a gas giant with several rings Jupiter is the biggest planet of them all Transitional fossils Anatomical similarities Geographical distribution Artificial selection Direct observation
Examples of natural selection Body color and patterns Camouflage in insects Genetics and resistance mechanisms Antibiotic resistance Neck length Giraffes neck Vegetated environments and visual predators Exposure to antibiotics in hospital settings Competition for food in the treetops
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