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BIO
Exam study
11 cards·by mniazi100
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a group of cells working together?
tissue
terms for all living things in an area
population
what are viruses made of?
dna
whats a covalent bond?
sharing of electrons between atoms
whats an ionic bond?
transfer of electrons between atoms
whats a polar molecule?
has pos and neg end
whats an acid
anything that releases hydrogen in water
nonpolar molecules?
insoluble in water
3 domains of life
archae bacteria eukarya
how many different amino acids are there?
20
whats a peptide bond?
covalent bond between amino acids