Adeficiency of vitamin results in deterioration of epithelial cells.

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u.s. and mexico. the st. lawrence seaway provides an important trading route for the u.s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

What best explains the inability for life to exist in earth early atmosphere

If a grape were placed in a hypertonic solution what would happen and why?