The ability of organisms to survive and reproduce under a range of environmental circumstances is called

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

Are the earth's ocean floor and continents the same age geologically? why or why not?

The relationship between intron and exon