What is the name that is given to a symbiotic relationship in which both species benefit?

A. Commensalism
B. Mutualism
C. Parasitism
D. Predation

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.

What is required in the genotype of an individual to show a recessive trait? a. two recessive alleles b. at least one recessive allele c. no recessive alleles

How do disease caused by bacteria and disease caused by viruses react to antibiotics