This organ contains a large number of phagocytes and is important for clearance of opsonized bacteria. People who have this organ removed are at higher risk for disseminated infections by encapsulated bacteria.

a) Spleen
b) Appendix
c) Kidney
d) Tonsils

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

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.