#67,#10,#23 scroll down to see the answer choices

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

24. how are vaccines used to keep people healthy?

Describe the trends in electron configuration in the periodic table by selecting the terms from the drop down menus