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cyanobacteria that’s similar to chloroplasts
prochlorophytes
woody species
1.vascular cambium
2.cork cambium
what plants never have secondary growth?
monocots: palms, grasses, lilies
perennial plants advantages? disadvantages?
advant.) permanent, continuous control over locallized space preventing competing plants from established growth.
dis) - exclusion of competitors
- monopolizing light
-immediate seasonal growth
when will vascular cambium form in these twigs? do they connect or remain separate?
Connects why?; a continuous connection of vascular system of main branch & cambial cells on the line forming a continuous sheet.
Growth ring
a layer of secondary xylem produced by vascular cambium during a growing season.