Answer to Question 1
A thrombus is a stationary clot while an embolus is a clot detached from its site of origin that may be carried into either the systemic or pulmonary circulation.
Answer to Question 2
Complete mole is more aggressive than a partial mole; results from the abnormal fertilization of an ovum that does not have chromosomes. When fertilized by a sperm, the chromosomes from the father are duplicated; there is a normal number of chromosomes (46) but these are all from the father; no embryo develops, and the chorionic villi become cystic.
Partial mole is less aggressive than a complete mole; caused by fertilization of a normal ovum, resulting in three sets of chromosomes. Embryo forms but does not survive and the trophoblastic tissues becomes a mixture of normal and cystic villi.
Orientation versus navigation.
Aldose versus ketose
Power Versus Tripod Grip
Malaria Ecology versus Incidence of Malaria
Helpfulness Versus Independence
Physical distance versus recombination distance on human male and female chromosome 19