Why are enzymes so important?
because they act as a catalyst in the chemical reactions necessary for life within organisms.
because they cause decomposition reactions.
because they are the building blocks of proteins.
because they are the building blocks of dna and rna.

Which of the following are not included as modern mammals that evolved during the eocene epoch? primates artiodactyls perissodactyls none of the above

Which statement is true about the two stars labeled in this diagram?

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.