The major difference between oxygen and ozone is:

1.the number of atoms in a molecule
2.the kind of atoms they are made of
3.the color of the gas
4..one is a gas and the other is a liquid

Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water

Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals