What would happen if a guard cells in plants stop working

How are carbon dioxide emissions affecting the earths natural cycle of temperature change? plz apex

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

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b. organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.