Curious carl and his lab partner were trying to answer the question: "what is white light? " to do this, carl directed an intense beam of light through a glass that had been placed on a piece of white paper. as the beam of light emerged from the opposite side, a rainbow of colors was produced on the white paper.

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

In the practice of science, this type of reasoning is used to develop explanations.

All ova contain sex chromosomes corresponding to: x y xx xy