An interdependent community of plants and animals is called. a biosphere c. an ecosystem b. an environment d. a tundra​

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.

Identify the fungus type pictured below. the image shows a mushroom used often in cooking, will gills underneath its cap.

Which organelle in a eukaryotic cell is most noticeable under a microscope? nucleus nucleolus ribosome nuclear envelope