Burning of fossil fuels has changed the atmosphere by

Because water is a polar molecule it makes an excellent solvent for atoms and compounds found within cell and tissue. water acting as a solvent in organisms, aids in all of the following except

The periodic table houses noble gas elements in group 18. these elements are highly stable and rarely react with any other elements. what is one possible reason for the stability of the noble gas elements? a. they easily form covalent bonds. b. the compounds that they form with other elements are very unstable. c. their outermost shell has the maximum number of electrons that it can hold. d. they require less activation energy.

Once an egg has been fertilized: multiple choice a zygote is formed a barrier to other sperm forms immediately new genes are formed cytoplasm is always exchanged the zygote becomes haploid