Answer:
Guard cells perceive and process environmental and endogenous stimuli such as light, humidity, CO2 concentration, temperature, drought, and plant hormones to trigger cellular responses resulting in stomatal opening or closure.
Explanation:
A landform is a natural feature of the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Typical landforms include hills, mountains, plateaus, canyons, and valleys, ... Oceans and continents exemplify the highest-order landforms.
Uh, if treated properly, with all it needs, then it'll be fine. but only if TREATED PROPERLY!!!!!!!
The extra step of dissolving the nucleus is needed during DNA replication in a eukaryotic cell, whereas bacteria are prokaryotic and therefore don't have a nucleus so they don't need this extra step.
Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin. Acetylcholine, gastrin, and histamine stimulate the proton pump in parietal cells to release hydrogen ions and decrease pH.
