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39 Cards in this Set
- Front
- Back
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accretion
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the process where planets form from other planets and space junk colliding together
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adaptation
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being able to adapt to your new environment and better suite their environment
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asteroid
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a giant space rock made up of elements and space junk
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atmosphere
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the envelope of gases that surround the earth or other planets
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biodiversity
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the variety of life in the world or in a particular habitat or ecosystem
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biology
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the study of living organisms
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biosphere
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the the study of earth and the living organisms on it
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brain
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an organ of soft nervous tissue in the skull
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cambrian explosion
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the appearance of animal species (rapidly)
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density
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the level of compactness in a substance
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DNA
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a self replicant material in nearly all living organisms
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Eukarytoes
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an organisms consisting of a cel or cells
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evolution
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the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms
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Extinction event
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a rapid decrease of life on earth
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Fossils
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the remains or impressions of historic organisms
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geology
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the science that deals with earths structure and substance
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Homeostasis
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the ability of all living organisms to adapt to tiny changes in their environment
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Life
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there is no one specific definition of life everyone has their own definition
to me life is anything that is constantly in motion, is breathing, for example me! |
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mammals
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a creature that has hair or fur, doesn't lay eggs and is warm blooded
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metabolism
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the thing that gives an organism energy and maintains your life (keeps you breathing)
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Multi celled Organisms
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an organism with more than one cell
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natura Selection
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the process where organisms better adapt to their environment
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Nucleus
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the central most important part of an object that forms the basis for activity and growth
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Organelle
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any number of organized or specialized structures in a cell
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Photosynthesis
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the process in which plants take energy from the sun to create food and energy for themselves
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Prokaryotes
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a microscopic single celled organisms
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reproduction
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the ability of something to produce
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taxonomy
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the science that deals with naming and classifying organisms
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what is the difference between life and non life
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life has these things while non life does not: metabolisms, homeostasis, reproduction, adaptation
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what role does DNA play in an organisms life
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DNA is the blueprint for life
it contains the "instructions" for making protein, new cells, how to create another life it is life! |
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possible sources where life began
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water: water is necessary for life so scientists look for liquid water where they search for life
one theory is that earth formed deep sea hydrothermal vents |
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why are rocky planets ideal for life
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because they have high chemical abundance and a good location in the solar system
there is also ALOT of water and water is necessary for life |
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Who discovered the structure of DNA
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Rosalind Franklin
Watson and Crick used her work to figure it out through x-ray diffraction |
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Who was Charles darwin
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a british scientist who came up with the theory of evolution and transformed the way we think of the natural world
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Process of Natural Selection
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1. Variation
2. Inheritance 3. High rate of population 4. Differential Survival and reproduction |
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Mini Thresholds in unit 5
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Prokaryotes
Eukaryotes Multi-celled organisms Development of Brains Life moves to land Mammals |
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Differences between prokaryotes and eukaryotes
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eukaryotes contain membrane bound organisms such as the nucleus
and prokaryotes do not |
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what are some geological factors that can impact our biosphere
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- the distance between the earth and the sun
- the tilt of the earth - small pieces of land |
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what were the major mass extinctions and what caused them
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(Dino extinction) K-T event
Meteor Ice Age Extreme climate change the permian triassic extinction 95% of all species were wiped out |
