Como se define la unidad astronómica, el año luz y el parasec?

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

How many major plates cover the earth

Dna replication or repair occurs in a cell in all of thw following situations except when