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CHAPTER 2: CELL FUNCTION 2.1.
CHAPTER 2: CELL FUNCTION 2.1.

... Proteins are made of amino acids and control chemical reactions in cells and support cell growth and repair. Lipids are made up of fatty acids and glycerol which repel water. Cell membranes are composed of lipids. Carbohydrates are C-H-O sugars and provide the cell with energy. Cellulose is a carboh ...
Notes - Pierce College
Notes - Pierce College

... Explain the Former Changes of the Earth’s Surface by Reference to Causes now in Operation [Also known just as Principles of Geology]—1830-1833 1) Presented field data supporting Hutton, suggesting that the earth is at least 500,000 years old [we now know it’s about 5 billion years old] 2) Proposed u ...
L8EarthAndFossils
L8EarthAndFossils

... Microtektites are submillimeter-size darkcolored, rounded silicate glass particles, often aerodynamically shaped. Microtektites form by impact melting of terrestrial sediments. ...
Evolution - Cobb Learning
Evolution - Cobb Learning

... continued to grow unchecked, sooner or later there would be insufficient living space and food for everyone. ...
Version A - Partners4results
Version A - Partners4results

... Early in Earth’s history, the molten outer layers of Earth released gases to form an early atmosphere. Cooling and solidification of that molten surface formed the early lithosphere approximately 4.4 billion years ago. Around 3.3 billion years ago, photosynthetic organisms appeared on Earth and remo ...
Revision powerpoint for B1
Revision powerpoint for B1

... survival- Those with better adaptations will survive • Pass on genespassing on their genes to the next generation ...
Chapter 2: Living Things Notes
Chapter 2: Living Things Notes

... 1. all living things have cellular organization--this means they are made of cells They may be unicellular (single-celled/made of 1 cell) or multicellular (many-celled/made of more than 1 cell) --some have organelles (specialized structures with special jobs) and some don’t 2. all living things cont ...
Biology II: Evolution Unit Standards - sohs-biology2
Biology II: Evolution Unit Standards - sohs-biology2

... Explain how mutation and sexual recombination produce genetic variation. Explain why prokaryotes can evolve more quickly than eukaryotes. Describe the five conditions required for the Hardy-Weinberg equilibrium and explain its significance. Distinguish between stabilizing selection, directional sele ...
11 Earth and Atmos
11 Earth and Atmos

... Scientists believe that the Earth’s atmosphere was formed by volcanoes releasing gases. This early atmosphere was about 95 % carbon dioxide. The composition of the Earth’s atmosphere is always changing. ...
Geology Review
Geology Review

... based on fossil plant and animal evidence that states that continents on Earth are in constant, slow motion caused by Plate Tectonics and Convection Currents in the mantle is known as what? ...
Evolution
Evolution

... • What is a species? • Biological species concept: a population or group whose members have the potential to interbreed with one another in nature to produce viable, fertile offspring, but who cannot interbreed with other such groups • Species are based on ability to interbreed – NOT on physical sim ...
Evolution Jeopardy
Evolution Jeopardy

... Fossils of lobe-finned fishes, which are ancestors of amphibians, are found in rocks that are at least 380 million years old. Fossils of the oldest amphibian-like vertebrate animals with true legs and lungs are found in rocks that are approximately 363 million years old. Three samples of rocks are a ...
7th gd Evolution
7th gd Evolution

... organisms that have genes that make them resistant to a particular chemical will be the only ones to survive in the presence of that chemical to pass on their traits. Examples: *Antibiotic resistant bacteria *Pesticide resistant insects ...
Changes Over Time
Changes Over Time

... organisms that have genes that make them resistant to a particular chemical will be the only ones to survive in the presence of that chemical to pass on their traits. Examples: *Antibiotic resistant bacteria *Pesticide resistant insects ...
GHSGT Biology Review
GHSGT Biology Review

...  mRNA—carries information for protein structure from DNA to a ribosome ...
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B1 Revision_sheets - Life Learning Cloud

... Organic waste ...
Gateway Biology Review- Answer Key Characteristics of Living
Gateway Biology Review- Answer Key Characteristics of Living

...  mRNA—carries information for protein structure from DNA to a ribosome ...
Biology Review Notes Summary
Biology Review Notes Summary

...  mRNA—carries information for protein structure from DNA to a ribosome ...
Continental Drift Theory Essay Final
Continental Drift Theory Essay Final

... Alfred believed that over a hundreds of millions years ago the continents formed a super continent called Pangea, meaning all earth. Even though Alfred Wegener's 1915 drawing was not believed until around 1940, it has changed our outlook on life for many people and the world. About 200 million years ...
of the same age is form in southern Africa, South America, India, and
of the same age is form in southern Africa, South America, India, and

... would be nearly impossible to explain currently without the knowledge that at one point nearly 200 million years ago, the supercontinent Pangae existed, which placed these 5 current day continents next to each other. The image to the right should give you an idea of their placement, and should give ...
Chapter 32 - Mr. Krall
Chapter 32 - Mr. Krall

... An animal discovered by scientists is clearly multicellular showing what appears to be radial symmetry but does not have cells organized into tissues. This animal is placed in the group P_____________________. ...
Study Guide: What Are Plant Needs? basic needs
Study Guide: What Are Plant Needs? basic needs

... A base keeps a flagpole standing. Basic needs keep things living and growing. nutrients- substances that help plants grow Tip- The first part of nutrients sounds like new. Plants need nutrients to grow and make new plants. ...
Biology 1 (Year 10)
Biology 1 (Year 10)

... Green plants absorb only a small percentage of this energy (about 1%), using the chlorophyll in their chloroplasts. The rest of the light is either reflected or is at the wrong wavelength. The absorbed energy is used for photosynthesis to produce substances that become part of the cells. These incre ...
Patterns of Evolution
Patterns of Evolution

... • Several times in Earth’s history, mass extinctions wiped out ecosystems – During these events, many species became extinct – Other species took advantage of ecological opportunities as habitats opened up – This produced a burst of evolution ...
evolution
evolution

... Earth’s early days to promote simple life. – What steps (and in what order) would you need to execute in order to achieve success? – What experiments/findings could substantiate your action plan? ...
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Evolutionary history of life



The evolutionary history of life on Earth traces the processes by which living and fossil organisms have evolved since life appeared on the planet, until the present day. Earth formed about 4.5 Ga (billion years ago) and life appeared on its surface within 1 billion years. The similarities between all present-day organisms indicate the presence of a common ancestor from which all known species have diverged through the process of evolution. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.
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