Under most conditions, ciliates such as this one, reproduce by both conjugation and a) meiosis. b) cytokinesis. c) binary fission. d) active transport.

How does human environment effect the biosphere

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.

Amines amides and amino acids are categories of