12mon
Twisted Sifter on MSNResearchers Have Finally Recorded Plants “Talking” On Camera And Warning Each Other About Attacking InsectsThey found two compounds – Z-3-HAL and E-2-HAL ... pores that open up to the atmosphere when plants take in CO2. Mesophyll ...
Gas exchange occurs in the alveoli which are found in the lungs. Many spongy mesophyll cells are in contact with the air spaces, providing a large surface area for gas exchange to happen.
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