Prokaryotic cells typically have a diameter of approximately 0.2 - 2.0 micrometers.
Monera consists of prokaryotic cells, which lack a nuclear membrane and organelles.
Eukarya are eukaryotic cells, which have a nuclear membrane and organelles.
An area of biology that deals with the study of the structure, function, multiplication, life history, problems, diseases, and chemistry of the cell.
Bacteria exhibit bacterial metabolism, which is distinct from eukaryotic metabolism.
The study of the history of life on Earth based on fossils, including remnants, footprints, and bite marks, revealing how organisms changed over time.
Algae are plant-like organisms that have cell walls made of cellulose and perform photosynthesis to produce energy, generating molecular oxygen and organic compounds.
The Five Kingdoms are Monera, Protista, Fungi, Plantae, and Animalia, each with distinct characteristics such as cell type, cell wall presence, nuclear membrane presence, body organization, and mode of nutrition.
A dynamic, cumulative system of reproducible methods, techniques, and processes derived from empirical know-how or scientific knowledge used by human societies for the production, improvement, and distribution of goods and services.
The study of the use and conversion of food substances.
Archaea do not have organelles, similar to Bacteria.
Cells that lack a true nucleus and membrane-bound organelles, typically smaller in size (0.2 - 2.0 micrometers) and reproduce by binary fission.
The study of animals that live and subsist on or in other animals, focusing on parasites, their hosts, and the ecological relationship between them.
The relations of animals to their environment, including interactions between organisms and their surroundings.
The study of the geographic distribution of animal species.
A classification system based on Chatton's discovery that includes Prokaryota and Eukaryota as the main kingdoms.
The study of spiders, one of the specialized fields within zoology.
A classification system proposed by Carl Woese that further divides life into six kingdoms, including Archaea and Bacteria.
Eukarya have a defined chromosome shape and possess telomeres.
A branch of biology that deals with the scientific study of animals, encompassing classification, evolution, diversity, and interactions with their environments.
The growth and development of the new individual within the egg or the mother, including the development of gametes, fertilization, and congenital disorders.
Eukaryotic cells generally have a diameter of approximately 10 - 100 micrometers.
The study of classification and the evolutionary interrelationships among animal groups.
He proposed the 3-kingdom system, which includes Plantae, Animalia, and Protista, incorporating all unicellular organisms.
A branch of biology dealing with the study of the form and structure of organisms and their specific structural features.
The branch of biology dealing with the functions and activities of living organisms and their parts, including all physical and chemical processes.
The origin and differentiation of animal life, involving growth and development from past organisms, influenced by natural selection, genetic variation, mutation, migration, and genetic drift.
The study of whales and dolphins, a specialized field within zoology.
Fungi reproduce by spores and are unable to produce their own food, instead feeding on organic chemicals.
Fungi have a cell wall that is present without cellulose.
Plantae are autotrophic, primarily through photosynthesis.
The scientific study of the microstructure of tissues, focusing on the fine detail of biological cells and tissues using microscopes.
Prokaryotic cells usually have a chemically complex cell wall made of peptidoglycan.
Prokaryotic cells reproduce through binary fission.
A scientist known for developing the 2-kingdom system of classification, which includes Plants and Animals.
Peptidoglycan is a polymer consisting of peptide (protein) and glycan (carbohydrates), forming a crucial component of bacterial cell walls.
A classification system proposed by Robert Whittaker that includes Monera, Protista, Fungi, Plantae, and Animalia.
Cells that have a true nucleus with a nuclear membrane and membrane-bound organelles, generally larger in size (10 - 100 micrometers) and reproduce by mitosis and meiosis.
Eukaryotic cells, when present, have a chemically simple cell wall made of cellulose or chitin.
The classification system that includes Eubacteria, Eukaryota, and Archaea, categorizing organisms based on cellular structure and characteristics.
Eukaryotic cells reproduce through mitosis and meiosis.
A dynamic, cumulative system of verifiable concepts, principles, methods, laws, theories, and processes which seek to describe, understand, and predict natural phenomena.
A modern classification system that includes Animalia, among others, dividing organisms into Phylum, Class, Order, Family, Genus, and Species.
The study of heredity and variation, focusing on the process of trait inheritance from parents to offspring and the molecular structure and function of genes.
The chemistry of life, focusing on the chemical compounds and processes involved in living organisms.
The classification of animals, involving naming, describing, and classifying organisms using morphological, behavioral, genetic, and biochemical observations.
The study of extinct animals, a specialized field within zoology.
A philosopher whose early classifications laid the foundation for biology, botany, and zoology, categorizing living things into plants and animals and further classifying animals based on blood and movement.
The classification of living organisms, recognized as one of the branches of zoology by the International Society of Zoological Sciences.
The scientific and objective study of animal behavior, focused on behavior under natural conditions as an evolutionarily adaptive trait.
The study of snakes, a specialized field within zoology.
The study of fish, a specialized field within zoology.
Animalia is the largest kingdom consisting of heterotrophic organisms that depend on other organisms for food.
The study of birds, a specialized field within zoology.
He distinguished organisms into prokaryotes (without a nucleus) and eukaryotes (with a nucleus) based on the development of microscopy.
The 6 Kingdom classification system includes Prokaryota (bacteria and archaebacteria), Eukaryota (fungi, animalia, protista, plantae, and chromista), categorizing organisms based on cellular structure and nutrition.
Archaea are ubiquitous in nature, meaning they are present everywhere, and some are free-living, not depending on hosts or symbionts.
Autotrophic organisms produce their own food through processes like photosynthesis or chemosynthesis, while heterotrophic organisms depend on other organisms for nutrition.
Heterotrophic nutrition includes saprophytic (feeding on dead materials), parasitic (feeding on a host), and holozoic (ingesting and digesting other organisms) modes.
