What percentage of Earth's water is fresh water? 3 percent
25 percent
75 percent
97 percent
Hep please

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes