Presentation on theme: "15-2 concepts That shaped Darwin’s Thinking"— Presentation transcript:

1 15-2 ideas That shame Darwin’s ThinkingPhoto credit: Richard Hutchings/Photo Researchers, Inc.

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2 Darwin’s Observations

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3 Darwin’s Observations15.1 notes #1 describe the sample Darwin observed among organisms the the Galapagos Islands. Countless PLANTS and also ANIMALS seemed WELL suitable TO your ENVIRONMENTS. THE characteristics OF many ANIMALS and also PLANTS VARIED among THE different ISLANDS

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4 An Ancient, transforming EarthHomework #1 Hutton and also Lyell assisted scientists recognize that planet is countless millions of year old, and also the processes that changed Earth in the past are the same processes that operate in the present. 1785 – James Hutton 1833 – Charles Lyell

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5 An Ancient, transforming Earth15.2 note #2 State exactly how Hutton and Lyell explained geological change. HUTTON – planet WAS shame BY GEOLOGICAL forces THAT TAKE place OVER millions of YEARS. LYELL – GEOLOGICAL processes OCCURING NOW have actually SHAPED EARTH’S attributes OVER lengthy PERIODS the TIME.

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6 Lamarck’s advancement HypothesesLamarck’s 3 Hypotheses Organisms want to be facility and perfect biology can readjust the size and shape of their bodies through use and disuse obtained traits (things you obtain AFTER you are born) room inherited through offspring Homework #2 1809 – Jean-Baptiste Lamarck

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7 Human Genes and also Chromosomes15.2 notes #2 determine Lamarck’s explanation of how varieties evolved. Types EVOLVE by SELECTIVE usage OR DISUSE the ORGANS, THIS leader TO obtained OR lost TRAITS. This TRAITS can THEN be PASSED come OFFSPRING leading TO types CHANGE.

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8 Population growth Too plenty of babies!!!Malthus published a book saying babies were being born much faster than human being died. If human population continues this way, sooner or later there will be insufficient an are and food because that everyone. 1798 – thomas Malthus

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9 population Growth Homework #3 War, famine, and disease.

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10 Population expansion 15.2 note #3Describe Malthus’ concept of populace growth.


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THE HUMAN population WILL GROW quicker THAN THE room AND FOOD SUPPLIES essential TO SUSTAIN IT.

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11 Vocabulary development – change in a types over timeTheory – a well-supported testable explanation the phenomena that have emerged in the natural civilization Fossil – preserved remains or proof of an ancient organism

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12 Vocabulary old – very oldGeology – the clinical study of the origin, history, structure, and also composition of earth Acquired characteristics – characteristics an organism gets throughout its lifetime that can not be passed down to it’s offspring

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