5Hypothesis Predictive May propose a method for testing the problem. Give a justification for the method of testing.
6Properties of life Metabolism: chemical pathways that are regulated Cellular organizationHomeostasis: maintaining stable internal environment through controlled chemical reactions or metabolism for life functions (pH, temperature, etc)
7Properties of lifeReproduction: capacity to develop from juvenile to adult stage with potential to replicate own DNAAsexualSexual
8Properties of lifeResponse to stimulus: able to react to external or internal changesMany responses to stimulus are result of enzymatic proteins.
9Chemical evolution of life production of small, reduced, carbon-containing compounds like formaldehyde and hydrogen cyanide.simple compounds reacted in the ocean to form the mid-sized molecules called sugars, amino acids, and nitrogenous bases
10Chemical evolution of life building block molecules linked together to form molecules found in cells (proteins and nucleic acids)single molecule acquired the ability to make a copies of itselfChemical evolution began to give way to biological evolution.
11CovalentSharing of electronsStableForms hydrocarbons
12Polar covalent bonds Water molecule Leads to different water properties