A mutation that involves changes in the number or structure of chromosomes is a

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

When water freezes, it . contracts expands

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences