What part of the cell membrane that recognizes chemical signs

Select the correct answer from each drop-down menu. during the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Por qué crees que los huevos con cáscara se llaman amnióticos?