The study of life

the ability of an organism to withstand fluctuations in biotic and abiotic environmental factors

building block of matter.
electron -
proton +
neutron o

scans surface of cell to help study 3-D structure of the cell

messanger RNA- brings instructions from DNA out of nucleus to ribosomes.
ribosomal RNA- binds mRNA and helps to assemble amino acids in correct order
transfer RNA- deleivers amino acids to ribosomes to be assembled into a protein.

organized
reproduction
growth/development
adjusts to surrounding

changes that occur in a community over time

matter made of atoms of only one kind

has a glycerol backbone, two fatty acid chain, and a phosphate group.

DNA instructions are passed to RNA molecule

a community and the abiotic factors in its environment

first species to take hold in an area in primary recession

a shared pair of electrons

the diffusion of water across a selectivity permeable membrane.

each group of 3 nucleotides.

"living together" permanent association between organisms of different species.

stable community that goes under little or no change

measure of how acidic or basic a solution is.

energy molecule used to power cell activities.

change in single base pair

feeding relationships of a ecosystem

group of same species that live in a specific area.

process in which monomers bond together to from polymers and water is formed.

light reaction
calvin cycle

any agent that can cause a change in DNA