Which of the following is both a phagocyte and an antigen-presenting cell?
nk cell
eosinophil
neutrophil
macrophage

Which element provides strength to the exoskeleton of clams and oysters

The rapid decomposition of organic matter produces evidence which supports: the slow accumulation of coal deposits long ages of the earth rapid burial of vast amounts of vegetation biblical account of noah's flood

What organ systems are working to you cool down after a workout?