primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
a person, particularly a male one, who is a former student of a college, university, or school
a single-celled microorganism that typically reproduces by cell division and can be found in various environments, including soil, water, and living organisms
a collection of related works, documents, or literature, often assembled for research or scholarly purposes
a single piece of information or a reference point used in analysis or measurement
the specific place or scene where an event or action occurs, especially used to denote the exact location of a meeting or event
a mature, female reproductive cell or egg, typically larger than a sperm cell, capable of fusing with a sperm cell during fertilization to form a zygote
something that triggers a reaction in various areas like psychology or physiology
a group of people with similar social standing, education, or income
a male reproductive organ responsible for the production of sperm and the secretion of testosterone
a young form of an insect or an animal that has come out of the egg but has not yet developed into an adult
the dense, positively charged core of an atom, made up of protons and neutrons and containing most of the atom's mass