Struggling with your prescribed literature?
Our Literature Study Guides provide insights and analysis of themes and characters and includes guidelines for writing your exam.
sac in which urine is stored before being discharged from the body.
a small, circular opening in the exoskeleton of insects that allows air to enter the insect's...
the muscular tube of the mammalian digestive tract that links the mouth to the stomach.
structure surrounding plan tcells i tgives cells rigidity and strength.
a microscopic hair-like extension of the cell membrane of the epithelial cells forming the outer...
when the entire heart, both of the atria and ventricles, is relaxed.