The cells that result from the early duplication and division processes are called stem cells, which are able to produce any other specialized cell.

The body is protected against harmful flu viruses by

Need will mark ! which features are created by groundwater erosion and deposition? check all that apply. a. stalagmitesb. sinkholesc. rillsd. stalactites e. gullies f. rivers

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?