Which biome covers the biggest region of earth? a)grassland b)forest c)marine d)desert

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

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

What finding has provided scientific evidence to support life on earth possibly evolved from microbes? a) the curiosity rover discovered warm and wet enviromental conditions on mars similar to earth. b) space probes discoverd evidence of possible extraterrestial life on other planets. c) space satellites provided pictres of prehistoric life on earth d) evidence of human fossils found in rock samples.