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Life cycle of Acetabularia acetabulum. This alga adheres to the substrate with rhizoids (root-like processes), and these are the only part of the alga present in the winter. . The thallus consists of a single cell, and in the spring a slender stem develops from the holdfast, growing vertically to a length of about 5 cm (2 i
Acetabularia is a genus of green algae in the family Polyphysaceae. [4] Typically found in subtropical waters, Acetabularia is a single-celled organism, but gigantic in size and complex in form, making it an excellent model organism for studying cell biology. [5]
Tip growth occurs in algae (e.g., Acetabularia acetabulum), fungi and plants (e.g. root hairs and pollen tubes). Tip growth is a process that has many similarities in diverse walled cells such as pollen tubes, root hairs, and hyphae.
Phycology (from Ancient Greek φῦκος (phûkos) 'seaweed' and -λογία 'study of') is the scientific study of algae. Also known as algology, phycology is a branch of life science. Algae are important as primary producers in aquatic ecosystems. Most algae are eukaryotic, photosynthetic organisms
The perforate acetabulum is a cup-shaped opening on each side of the pelvic girdle formed where the ischium, ilium, and pubis all meet, and into which the head of the femur inserts. [ 8 ] [ 9 ] The orientation and position of the acetabulum is one of the main morphological traits that caused dinosaurs to walk in an upright posture with their ...
But diagnostically, there is a definition of aerophobia, and people with it have sets of symptoms. There are physical symptoms of that fear — fast heartbeat, sweating, trembling, dizziness ...
Dozens of Department of Education employees received letters as business hours closed Friday placing them on administrative leave, according to a copy of one letter obtained by ABC News.
“This is the textbook definition of a trade war,” DelBene said. Trump advisers have disputed claims that the proposed tariffs would spike prices, noting that inflation remained low during ...