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Life is organized by levels
Life is organized by levels
-Atom- All matter is made of atoms
-Molecule- Two or more atoms bonded together
-Cell- The smallest unit of life
-Tissue- A group of similar cells
-Organ- A group of similar cells working together
-Organ System- A group of organs working together
-Multicellular Organism- A complete living thing
-Species- Organisms that can reproduce and produce a fertile, viable, offspring
-Population- A group of the same species
-Community- All the species in an area
-Ecosystem- All the biotic (living) and abiotic (non-living) things in an area
-Biosphere- The earth
Watch this short video on the definition of a species. (Online Course instructions only) Create a box in your sketchbook, title it "What is a Species" and take notes, write down the definition and explanation in your own words and include an image in your sketchbook.
Organisms are divided through systemics and taxonomy
Organisms are divided through systemics and taxonomy
-Domain
-Kingdom
-Phylum
-Class
-Order
-Family
-Genus
-Species
Watch this short video on Taxonomy. (Online Course instructions only) Create a box in your sketchbook, title it "Taxonomy" and take notes, write down the taxonomy of a human and include an image in your sketchbook.
The three domains are
The three domains are
Bacteria
Archaea
Eukarya
The Four Kingdoms of Eukarya
The Four Kingdoms of Eukarya
Protista
Fungi
Plantae
Animalia
Diffusion and Osmosis
Diffusion and Osmosis
-Diffusion is the movement from an area of high concentration to an area of low concentration
-Osmosis is the diffusion of water
-When water moves from an area of high concentration to low concentration
-In order to understand diffusion we need to remember that atoms are always moving. Hot atoms move fast. Because atoms are always moving they tend to bounce off each other. Once they collide and bounce off each other they then head in the opposite direction. All of this bouncing off of each other causes atoms to spread out. This is diffusion.
SO WHAT! Who cares about diffusion?
Diffusion is the reason everything in biology works. At the heart of almost all biological processes is diffusion.
Some words we need to know:
-Solvent-Usually water-the substance there is more of. the liquid doing the dissolving.
-Solute-The other substance in the mixture of the solvent and the solute. Usually the stuff mixed in with water
-Hypertonic- having less water (less pressure)
-Hypotonic- having more water (More pressure)
-Isotonic- having an even amount (no pressure)
-Equilibrium- having no pressure- isotonic
Watch this video on osmosis. (Online Course instructions only) Create a box in your sketchbook, title it "osmosis" and take notes, write down questions you might have, and new examples you might think of. You may include any picture you like that represents the topic, including funny memes.
For your quiz be able to label a jar or fish as hypertonic, hypotonic, isotonic, and be able to say which direction the water will travel.
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