What species first appeared to walk upright?
homo erectus
homo habilis
neanderthals
australopithecines

One gene can influence trait(s). one trait can be determined by gene(s).

How do you date a sample of rock that you suspect as being one of the earliest on earth

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.