How can you tell something is alive?

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

The pronunciation aid that determines the stress placed upon a syllable is the

Which statement best explains why cells were observed in more detail using a compound microscope than a simple microscope? a compound microscope has greater magnification ability than a simple microscope. the compound microscope was invented before the simple microscope. a compound microscope is much easier to manufacture than a simple microscope. compound microscopes were more common than simple microscopes.