DEFINITIONS AND KEY POINTS FOR OBJECTIVES
||Groupsof organisms having separate origin are called polyphyletic.
||A regular arrangement of microtubules is called the pellicle.
||The maintenance of water and salt balance in the body is called osmoregulation.
||Symbiosis is an intimate association between two organisms.
||An association in which one organism lives in or on a second organism, host and causes disease in the host is called parasitism.
||The symbiotic relationship in which one member of the relationship benefits and the second member are neither benefited nor banned is called commensalisms.
||The symbiotic relationship in which both species benefit is called mutualism.
||Zoologists who specialize in the study of protozoa are called proto-zoologists.
||The cilia join to form cirri