when salt is used to preserve food , the food isA . cooled B . coated C. canned Do dehydrated

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

Tom wants to conduct a scientific study but he needs to finish by the end of the school year. what practical way could tom work around this limitation and be successful in his study?

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems