HORTICULTURE

Detailed explanation-1: -All plants are not unicellular. They are multicellular organisms comprising more than one cell. Example: Pinus, maize. Algae are a group of unicellular, autotrophic organisms that lack complex plant organs.

Detailed explanation-2: -Answer and Explanation: All true plants are regarded as multicellular organisms since they consist of more than a single cell.

Detailed explanation-3: -Despite this enormous variation, all plants are multicellular and eukaryotic (i.e., each cell possesses a membrane-bound nucleus that contains the chromosomes).

Detailed explanation-4: -Plants and animals are the textbook examples of multicellular life, but some microbes, too, exhibit a few simple aspects of group behavior. For example, microbes called cyanobacteria form complex chains of cells.

Detailed explanation-5: -Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast.