Lichens. Unidentified lichens growing on a basalt rock. Lichens are mutualistic organisms that comprise an alga and a fungus living in a mutually-beneficial relationship. The alga produces carbohydrates for the fungus by photosynthesis, and the fungus protects the alga from harsh conditions. Lichens are sensitive to pollution: several are used as indicator species for sulphur dioxide levels in the atmosphere.
px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP10167919
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
Same folder images: