Question | Answer |
asexual reproduction | Reproduction by which offspring arise from a single organism, and inherit the genes of that parent only. |
cell | The smallest structural and functional unit of an organism. |
cephalization | A tendency in the development of animals to localization of important organs or parts in or near the head. |
closed circulatory system | Closed circulatory systems have the blood closed at all times within vessels. |
coelom | The fluid-filled cavity within the body of most multicellular animals. |
colonial | Living in close association with one's species. |
fluid feeding | Feeding on the fluids of another organism. |
endoskeleton | A rigid support structure found within an organism. |
excretion | The process by which waste products of metabolism and other non-useful materials are eliminated from an organism. |
exoskeleton | A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection. |
filter feeding | Feeding by straining suspended matter and food particles from water. |
free-living | An organism that is not directly dependent on another organism for survival |
internal transport | The process in which respiratory gases and nutrients are transported within an organism. |
invertebrates | Organisms lacking a spine and vertebrae. |
levels of organization | The biological levels of organization of living things arranged from the simplest to most complex. |
life functions | Vital processes that include digestion, respiration, reproduction, circulation, excretion, movement, coordination, and immunity. |
medusa | A form of cnidarian in which the body is shaped like an umbrella. |
motility | The ability of organisms and fluid to move or get around. |
multicellular | A more complex organism made up of multiple cells. |
niche | where an organism fits in relation to it's surroundings |
open circulatory system | The open circulatory system is a system in which a fluid in a cavity called the hemocoel bathes the organs directly with oxygen and nutrients and there is no distinction between blood and interstitial fluid. |
organ | A part of an organism that is typically self-contained and has a specific vital function. |
organ system | A group of organs that work together to perform one or more functions. |
parasite | An organism that lives in or on another organism and benefits by deriving nutrients at the host's expense. |
polyp | A solitary or colonial sedentary form of a coelenterate such as a sea anemone, typically having a columnar body with the mouth uppermost surrounded by a ring of tentacles. |
reproduction | The biological process by which new individual organisms are produced from their parents. |
resperation | The movement of oxygen from the outside air to the cells within tissues. |
response | How an organism adapts to its environment. |
sessile | An organism fixed in one place. |
sexual reproduction | The production of new living organisms by combining genetic information from two individuals of different types. |
symmetry | the symmetry of an organism dictates how complex an organism is |
tissue | Any of the distinct types of material of which animals or plants are made. |
vertebral column | the bone structure that runs down the back of vertebrates. |