Levals Of Organization In Living Things Flashcards
(18 cards)
Prokary
any cellular organism that has no nuclear membrane
Eukary
any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm, a membrane-bound nucleus enclosing genetic material organized into chromosomes, and an elaborate system of division by mitosis or meiosis, characteristic of all life forms except bacteria, blue-green algae, and other primitive microorganisms.f
Unicellular
having or consisting of a single cell.
Multicellular
composed of several or many cells.
Autotrophic
any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists
Heterotrophic
capable of utilizing only organic materials as a source of food
Sexual reproduction
reproduction involving the union of gametes.
Asexual reproduction
independent of sexual processes, especially not involving the union of male and female germ cells
Stimuli
something that incites to action or exertion or quickens action, feeling, thought
Homeostasis
the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.
Evolution
any process of formation or growth; development
Classification
Biology. the assignment of organisms to groups within a system of categories distinguished by structure, origin,
Taxonomy
the science or technique of classification
Cell
a usually microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms.
Tissue
an aggregate of similar cells and cell products forming a definite kind of structural material with a specific function, in a multicellular organism.
Organ
grouping of tissues into a distinct structure, as a heart or kidney in animals or a leaf or stamen in plants, that performs a specialized task.
Organs system
grouping of tissues into a distinct structure, as a heart or kidney in animals or a leaf or stamen in plants, that performs a specialized task. And many of them in the human and animal body
Organism
a form of life composed of mutually interdependent parts that maintain various vital processes.