what is ecology? (2nd edition) - part 21 of 36. outstanding photography of natural life helps to define and illustrate basic terms in the science of ecology. the film gives a general definition of ecosystem, and also describes specific ecosystems: forest, - 蔓仙人掌 個影片檔及 b 捲影像00:34
what is ecology? (2nd edition) - part 20 of 36. outstanding photography of natural life helps to define and illustrate basic terms in the science of ecology. the film gives a general definition of ecosystem, and also describes specific ecosystems: forest, - 蔓仙人掌 個影片檔及 b 捲影像00:35
desert estabs - saguaro cacti, ocotillos, blue larkspur (delphinium) and mountain range, sonoran desert, usa - 蔓仙人掌 個影片檔及 b 捲影像00:07
aerial views of the calexico solar farm, mount signal solar farm and the ocotillo wind farm in ocotillo, ca. u.s. on friday, september 11, 2020. as... - 蔓仙人掌 個影片檔及 b 捲影像00:48
aerial views of the ocotillo wind farm in ocotillo, ca. u.s. on friday, september 11, 2020. as the threat of blackouts continues to plague... - 蔓仙人掌 個影片檔及 b 捲影像00:15
aerial views of the ocotillo wind farm in ocotillo, ca. u.s. on friday, september 11, 2020. as the threat of blackouts continues to plague... - 蔓仙人掌 個影片檔及 b 捲影像00:15
aerial views of the ocotillo wind farm in ocotillo, ca. u.s. on friday, september 11, 2020. as the threat of blackouts continues to plague... - 蔓仙人掌 個影片檔及 b 捲影像00:10
aerial views of the calexico solar farm, mount signal solar farm and the ocotillo wind farm in ocotillo, ca. u.s. on friday, september 11, 2020. as... - 蔓仙人掌 個影片檔及 b 捲影像00:47
aerial views of the ocotillo wind farm in ocotillo, ca. u.s. on friday, september 11, 2020. as the threat of blackouts continues to plague... - 蔓仙人掌 個影片檔及 b 捲影像00:14
prickly pear cactus in saguaro national park, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:19
saguaro national park, spines on ocotillo cactus at sunset blowing in the breeze, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:14
saguaro national park, spines on cactus at sunset, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:14
saguaro national park, spines on cactus, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:16
sun thru ocotillo in organ pipe cactus national monument, desert landscape, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:20
sun shinning thru ocotillo in organ pipe cactus national monument, desert landscape, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:13
silhouette of an ocotillo plant during a colorful sunset in saguaro national park near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:12
saguaro national park, spines on cactus at sunset, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:13
saguaro national park, spines on cactus at sunset, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:15
prickly pear cactus in saguaro national park, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:16
silhouette of an ocotillo plant during a colorful sunset in saguaro national park near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:16
saguaro national park, spines on cactus at sunset, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:15
saguaro national park, spines on cactus at sunset, sonoran desert landscape near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:13
desert landscape during a colorful sunset in saguaro national park near tucson, arizona - 蔓仙人掌 個影片檔及 b 捲影像00:19
ts modern art institute and art gallery building in small desert town with floor to ceiling glass windows and concrete overhang - 蔓仙人掌 個影片檔及 b 捲影像00:18
