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| atom that has a different number of neutrons then the other atom of the same element |
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| an atom that has a postive or negative charge. |
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| two or more elements combined together |
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| acidic....contain higher concentration of H+ ions |
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| Solutions that contain lover concentration of H+ ions |
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| bond when one or more electrons are transferred from one atom to another one |
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| bonds formed by the sharing of electrons between atoms |
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| Solute ....solvent....solution |
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Definition
solute....dissolvent..kool aid
Solvent.....dissolver....water
Solution.....mixture that is even throughout the area |
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Definition
measures how concentrated a solution is
1-7 acid
8-14 bases |
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| chemical reaction through which an organism builds up or breaks down materials |
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| protons.....neutrons.....electrons |
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Definition
protons...possitive
neutrons....negative
electrons....neutal charge |
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Definition
| scientific study of interactions between organisms...and their enviornment |
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Definition
| collection of all organsims that live together in a place, both non living and living |
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| primary and secondary succession |
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Definition
changes that occurs in a community over time....
primary...succession that occurs on the surface of the soil
secondary....when an ecosystem tries to return to its natural well being...(Wildfire) |
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| different populations that live together in a certain area |
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| group of individuals (same speices) living in the same area |
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| group of similar indivduals that can breed together |
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- ecosystems that have the same climate and dominant communaties
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| first speices to populate and area |
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| when salt water and fresh water combine |
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Definition
autotrophs....make their own food
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get there energy by eating
Heterotrophs |
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Definition
how energy is passed down through the ecosystem
only 10% is passed down each time |
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Definition
| each step in the food chain or wev |
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Definition
power house of the cell
contains the cells genetic material DNA
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Term
| Endoplasmic Reticulum (rough) (smooth) |
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Definition
were the cell membrane are assembled along with proteins and other materials
Rough----
Smooth---- |
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| the plasma that surounds that cell and neuclus |
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organize cell division
not found in plant cells
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organelles that convert the chemical engergy stored in food into compounds
enclosed 2 membranes
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| sort and package proteins from the endoplasmic reticulum |
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Definition
| the layer that surrounds the cell |
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| saclike container that stores materials |
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Definition
only found in plants
capture energy from sunlight
convert it into chemical energy |
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Definition
| layer around the membrane |
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Definition
| movenment device...or something that is used to acttach itself to something else |
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| something without an neucleus |
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| diffusion of water through selective permeable membrane |
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