Lock Martin (October 12, 1916 â January 19, 1959) was the stage name of American actor Joseph Lockard Martin, Jr. He is best remembered for playing the robot Gort in The Day the Earth Stood Still (1951). He was from Pennsylvania and had a series of odd jobs before going into acting.
Using the term 'plants' in its most restrictive fashion, the algae are then photosynthetic organisms excepting the sister group to the Charales (i.e. the land plants). Such a definition allows inclusion of photosynthetic prokaryotes such as the cyanobacteria.he algae are a polyphyletic and paraphyletic group of organisms. They are defined in differing ways, but are usually considered to be the photosynthetic organisms excepting plants.
Algae have photosynthetic machinery ultimately derived from cyanobacteria that produce oxygen as a by-product of photosynthesis, unlike other photosynthetic bacteria such as purple and green sulfur bacteria.