Bilateria: organisms that display bilateral symmetry. DNA (deoxyribonucleic acid): double-stranded nucleic acid that can replicate itself. It determines the inherited structure of a cell's proteins.

Enzyme: organic catalyst that changes the rate of metabolism. Eukaryote: organism made up of one or more cells with a nucleus enclosed by a membrane and membrane-bounded organelles.

Gene sequences: strings of DNA or RNA, which contain genetic information.

Genetic code: sequence of triplets of molecules carried on chromosomes, which determines most of the physical characteristics of an organism, and is composed of DNA or RNA. Isotopes: elements with similar chemical properties but different numbers of neutrons.

Krebs' cycle: chemical cycle that completes the breakdown of glucose to carbon. It takes place in the eukaryotic mitochondria.

Metazoans: multicellular eukaryotes that rely on an external source of food.

Mitochondria: eukaryotic organelles that serve as the site for the operation of Krebs' cycle.

Molecular clock: method of comparing DNA sequences in order to establish the timing of evolutionary divergence. Organelle: one of several specialized structures found in eukaryotic cells, for example mitochondria and chloroplasts. Photosynthesis: biological process that converts light energy into chemical energy, which is stored in glucose or other organic compounds.

Plastids: eukaryotic plant organelles including chloroplasts. Prebilateralia: animals that display radial symmetry. Prokaryote: cell without a nucleus and membrane-bound organelles.

RNA (ribonucleic acid): a single-stranded, simpler alternative than DNA that also carries genetic information.

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Survival Basics

Survival Basics

This is common knowledge that disaster is everywhere. Its in the streets, its inside your campuses, and it can even be found inside your home. The question is not whether we are safe because no one is really THAT secure anymore but whether we can do something to lessen the odds of ever becoming a victim.

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