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SLS Bio11 Animals NL

TermDefinition
asexual reproduction a form of reproduction that does not involve meiosis, ploidy reduction or fertilization, and the offspring is a clone of the parent organism
cell the structural, functional and biological unit of all organisms
cephalization an evolutionary trend, whereby nervous tissue, over many generations, becomes concentrated toward one end of an organism. This process eventually produces a head region with sensory organs
closed circulatory system A system where blood is closed at all times within vessels of different size and wall thickness. Blood is pumped by a heart through vessels, and does not normally fill body cavities.
coelom the body cavity in metazoans, located between the intestinal canal and the body wall
colonial having become established in a community in a new environment
fluid having particles which easily move and change their relative position without a separation of the mass, and which easily yield to pressure
feeding giving food or nourishment
endoskeleton the internal skeleton; bony and cartilaginous structure (especially of vertebrates)
excretion the process, act or function of discharging or ejecting waste product of metabolism, especially from the system of an organism
filter feeding feeding by filtering out plankton or nutrients suspended in the water
free-living living freely and independently, not as a parasite or attached to a substrate
internal transport a circulatory system made of a pump and blood
invertebrates an animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate, etc.
levels of organization arranged from the simplest to most complex: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere
life functions nutrition, transport, respiration, excretion, elimination, reproduction, growth, repair, synthesis, locomotion, regulation
medusa the freely-swimming, umbrella- or disk-shaped gelatinous form of cnidarians
motility capable of moving or self-propelling
multicellular having or consisting of many cells or more than one cell to perform all vital functions
niche the role or function of an organism or species in an ecosystem
open circulatory system circulatory system in which the heart pumps blood into vessels that have open ends
organ a group of tissues that perform a specific function or group of functions
organ system a group of organs that work together to carry out a particular task
parasite/parasitic an organism that obtains nourishment and shelter on another orgnism
polyp the hollow, columnar, sessile form of Cnidarians
reproduction the production of offspring by organized bodies
respiration any of the various analogous processes by which there is an exchange of gases
response an action or movement due to the application of a stimulus
sessile relating to the state of sessility or the inability to move actively or spontaneously
sexual reproduction a mode of reproduction involving the fusion of female gamete and male gamete, which forms a zygote that potentially develops into genetically distinct offspring
symmetry correspondence of parts (in terms of form, size, distribution, or arrangement) on opposite sides of a dividing plane or on sides around an axis
tissue an aggregate of cells in an organism that have similar structure and function
vertebral an animal with a back bone, to protect the spinal cord and provides a stable attachment for the muscles of the trunk
column the lower part of an awn in grasses, when distinctly different in form from the upper part, a structure in orchids which extends above the ovary of a flower and incorporates stigma, style and stamens
Created by: nicky6304