The inner and outer planets, Mercury and Venus, Mars, Jupiter and Saturn, were identified by ancient Babylonian astronomers between 2000 to 1001 BC. It was not until the 1600's that Galieleo and Cassini, using telescopes, discovered what? (can not find science)

Awic dietitian is meeting with a client who has an infant and a young child. the mother says that the young child is a very picky eater and will only eat crackers and juice. the health worker notices that the child's hair is brittle, his nails tear easily, and the skin inside his lower eyelids is very pale. these are all signs of iron deficiency.

Most scientific questions are based on opinions. hypotheses. observations. experimental data.

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.