Which of the following compounds is covalent?

aluminum oxide

magnesium chloride

lithium fluoride

nitrogen dioxide

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

Organisms are classified, or grouped into categories, based on similarities in their characteristics and/or evolutionary relationships. the study of how organisms are classified is known as

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half