The diagram shows five levels of organization in a multicellular organism. The most basic unit is the cell; groups of similar cells form tissues; groups of different tissues make up organs; groups of organs form organ systems; cells, tissues, organs, and organ systems combine to form a multic...
Taxon: Set of organisms within a category / Taxonomy / Study of biological classification Different levels of taxons: SPECIES, GENUS, FAMILY, ORDER, CLASS, PHYLUM, KINGDOM Most number of species on right Most similar organisms on left Unicellular: Single cell; Colonial: Groups of cells; Multic...
While a multicellular living thing has distinct systems to perform specific tasks, a unicellular organism would perform these processes of life as a single independent unit. Taxonomic Classification Living things are classified into three major domains as proposed by Carl Woese. These domains are the ...
Biology- Unit 1 (cells and multicellular organisms) 66個詞語 millie_lockwood預覽 Cell membrane function 19個詞語 Olivier_Farhat預覽 Biology Structure of Cells 27個詞語 lcrokerr預覽 Biology - Chapter 3B 14個詞語 Octopus_2014預覽 Biology Classwork Overview 25個詞語 schillingannie7預覽 Biology 3/4 ant...
In biology, a cell is the structural, functional, and biological unit of all organisms. It is an autonomous self-replicating unit that may exist as a functional independent unit of life (as in the case of a unicellular organism), or as a sub-unit in a multicellular organism (such as in...
(This requirement is why viruses are not considered living: they are not made of cells. To make new viruses, they have to invade and hijack a living cell; only then can they obtain the materials they need to reproduce.) Some organisms consist of a single cell and others are multicellular...
National 5 Biology Unit 2 – Multicellular Organisms
Any cell in a multicellular organism except a sperm or egg cell. somatic nervous system [Gk.soma,body] The branch of the motor division of the vertebrate peripheral nervous system composed of motor neurons that carry signals to skeletal muscles in response to external stimuli. ...
regardless of the coloration of the parents. There exists still another form of nongenetic variation—so-called protracted modifications—often found in unicellular organisms and occasionally in multicellular ones. They arise under the influence of external factors (for example, temperature or chemical fac...
Besides the charismatic fauna commonly observed in North American homes — dogs, cats, the occasional freshwater fish — ants and roaches, crickets and carpet bugs, mites and millions upon millions of microbes, including hundreds of multicellular species and thousands of unicellular species, also thriv...