Genetic variation is important because it allows natural selection to increase or decrease frequency of alleles already in the population
Answer:
two nonmetal elements join together to form covalent compounds
Answer:
mixture of atoms forms molecule
Answer: A) Storing experimental samples
Explanation:
It is a common piece of laboratory glassware that can be made of glass or plastic and is opened at the top and closed at the bottom.
It cannot be used for measurements because there is no graduation indicating the volume.
Althought it can contain extra chemicals left over from an experiment, it is not the main proposal of the glassware that is to store samples.
It cannot be used in a microscope and the object for that is a microscope slide.
Your answer is False I think
