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SLSBio11 Animals(KM)

SLS Bio 11 Animals (KM)

QuestionAnswer
Asexual reproduction Method of reproduction where a single organism reproduces an offspring with identical genetic traits. Compare sexual reproduction.
Cell Basic structural, functional and biological unit of organisms. Less developed animals tend to have cell level organization.
Cephalization Evolutionary trend where the nervous tissue gets concentrated to one part of an organism. Basically, formation of a distinguishable head.
Closed Circulatory system Type of circulatory system where the blood is closed within vessels at all times. Compare Open Circulatory system.
Coelom Main body cavity in multicellular organisms that contain internal organs, especially the digestive system.
Colonial A type of multicellular formation that forms from multiple unicellular organisms grouping in a colonized form.
Fluid feeding Feeding method of feeding on fluids of other organisms.
Endoskeleton Skeleton inside the skin layer of an animal, generally used to support the body.
Excretion Process through which waste material is disposed- connected to the digestive system.
Exoskeleton Skeleton outside of the skin layer. Generally used for protection and other purposes.
Filter feeding Feeding method of feeding oneself by setting filters to catch preys, in water.
Free-living Independent; not reliant on a host, not parasitic.
Internal transport Transportation of fluid and nutrients through diffusion- common in smaller organisms.
Invertebrates Classification of animals that do not possess a vertebrate. Compare vertebrates.
Levels of organization Organization differs depending on the complexity of organisms, and often this determines the development of an animal. There are cell, tissue, and organ level of organization.
Life functions process that a living thing must do in order to be, or be called a living thing. There are usually 5 or 8; they include: Reproduction Excretion Growth Nutrition Respiration Regulation Transport Synthesis
Medusa A stage of the life cycle of cnidarians where they live a non-polyp life.
Motility/Motile Ability to move spontaneously and actively by consuming energy. Compare sessile.
Multicellular Organisms that have more than one cell.
Niche A roll, place, or position in an ecosystem that a particular organism plays.
Open circulatory system A type of circulatory system where the blood is pumped into a hemocoel with the blood diffusing back to the circulatory system between cells, blood surrounding the tissues. Compare closed circulatory system.
Organ Group of tissues that combine to perform a certain function. Highly developed organisms have organ level of organization.
Organ system Group of organs that combine to function a certain task. Digestive, circulatory, respiratory, etc. Most developed animals tend to have this kind of organization.
Parasite/Parasitic An organism that depends on a host; compare free-living. It can have commensalistic, mutual, or parasitic relationship with the host.
Polyp A stage of cnidarians where they live attached to a surface.
Reproduction Process by which an organism creates an offspring; technically, this is the biological goal of all organisms.
Response A reaction caused from the application of a stimulus.
Sessile Inability of an organism to move about; sessile organisms tend to attach to a surface. Compare motile.
Sexual reproduction Method of reproduction where two organisms (Not necessarily) engage to create a zygote through the meeting of sperm and egg. Offspring is genetically different from the parents. Compare Asexual reproduction.
Symmetry Balanced distribution of organs or body parts within an animal. Most complex organisms tend to have bilateral symmetry. Some are asymmetrical, and some are radially symmetrical.
Tissue Group of cells that come together to perform a certain function. Tissues combine to form organs. Moderately developed organisms tend to have a tissue level of organization.
Vertebral column Also known as vertebrate or the spine, is a supporting structure that holds certain animals straight. Vertebrates are classified by the existence of this structure.
Created by: ssongta
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