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Chapters1-6

Across
The first scientist to discover cells
What are proteins made of
All organisms are made of cells and all things come from existing cells
Adenine and guanine
Lipids have a _____ head
Cytosine, uracil, and thymine
Monomers of carbohydrates
A highly organized compartment bounded by a thin, flexible structure
A layer of mostly lipids that surrounds a cell
An hypothesis that explains how complex carbon containing compounds could have formed from simpler molecules
Polar R-groups within water
When water spontaneously moves across the membrane towards the solution with the higher solute and lower water concentration
When the number of neutrons vary in an atom's nucleus
Positively charged atom
Bonds formed when an atom completely transfers an electron to another atom
An accepted explanation that has yet to be disproved
Down
Species are not independent and change in allele frequencies do occur
Scientists make these as an explanation of data
Varieties of different traits result in different levels of fitness
Bonds between phosphate groups in nucleic acids
Bonds between water molecules
Bonds between glycerol and fatty acids
6.022X10^23
Purines=prymidines
Monomers of nucleic acids
In the cell walls of fungi and makes up the exoskeleton of insects
Molecules with the same molecular formula but different structures
Data points, something you can prove or measure