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Each Acetabularia cell is composed of three segments: the "foot" or basal segment which contains the nucleus, the "stalk", and the "cap". Hämmerling exchanged caps between individuals from two species, A. mediterranea and A. crenulata. A. mediterranea has a smooth, disc-shaped cap, while A. crenulata has a branched, flower-like cap.
Acetabularia mediterranea J. V. Lamouroux, 1816 Acetabulum marinum Tournefort, 1719 ... Acetabularia acetabulum is a species of green alga in the family Polyphysaceae.
Shortly thereafter, the mediterranea regenerated the removed parts, but with the characteristics from the crenulata species. [4] This experiment demonstrated that the nucleus contains the genetic information and controls development. [7] The experiment also proved the existence of morphogenetic substances, which would eventually become known as ...
Acetabularia crenulata, one of the many species known as mermaid's wineglass, is a form of green alga generally found in shallow tropical seas. It can be found growing in great abundance along stretches of the overseas highway to Key West, Florida bordering on Florida Bay .
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Acetabularia caliculus, the umbrella alga, is a species of green alga found in shallow temperate and tropical seas. It usually grows on pebbles, shells or pieces of rock, and is often found in seagrass meadows , on mudflats and coral reefs , in estuaries and growing on the submerged roots of mangroves .
Acetabulum / æ s ɪ ˈ t æ b j ʊ l ə m / (pl.: acetabula) in invertebrate zoology is a saucer-shaped organ of attachment in some annelid worms (like leech) and flatworms.It is a specialised sucker for parasitic adaptation in trematodes by which the worms are able to attach on the host. [1]