Water molecule, H2O Oxygen molecule, O2 When the two substances are put in the same container, they do not attract
each other. Why does this happen?
O A. They both contain oxygen.
B. They contain different elements,
C. One is polar, and one is nonpolar.
O D. They are both nonpolar.

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. what can be inferred from these observations? monarchs must threaten and attack birds, but not wasps. monarchs have a way of discouraging bird predation that does not involve hiding. monarchs’ wings are so colorful that most birds must find them difficult to eat. monarchs lay more eggs than other less conspicuous butterflies.

What are the three different shapes, or structures, of carbon-based molecules