Which of the following atoms would be considered an ion

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

What two fields of study provide the core information that is used to classify organisms?

Classify the structures as homologous or analogous, depending on their structure and function.