Which of the following is a compound?
pizza
oxygen
brass
table salt

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

The seed coat's most important function is to provide a) a nonstressful environment for the megasporangium. b) the means for dispersal. c) dormancy. d) a nutrient supply for the embryo. e) desiccation resistance.

If a robot fixed another robot is it a engineer or doctor?