All forms of cancer are characterized by - A an abnormal, unregulated production of cells
B the aggregation of cells into a mass called a tumor
C the spreading of abnormal cells to tissues across the body
D the inhibition of DNA replication in affected cells

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent  

Which pair of sentences is describing the same velocity? a. a car is parked. a car is moving in circles. b. a bus drives 40 miles per hour north. a truck drives 50 miles per hour north. c. a boy walks east at 6 kilometers per hour. a girl walks west at the same speed as the boy. d. valerie rides her bike south at 8 kilometers per hour. owen jogs south at 8 kilometers per hour.

What is the role of pancreatic juice in digestion?