Someseaurchins海膽havevenomous(toxin)spines
A、sensuous(feeling)Eyespots,themostrudimentaryeyes,arefoundinprotozoan原生動物flagellates鞭毛蟲,flatworms扁形蟲,andsegmentedworms片段蠕蟲.
EllaGrasso,electedgovernorofConnecticutin1974,supportedtheenactment(given,granted)ofafreedom-of-informationlaw.
Alllivingorganisms,regardlessoftheiruniqueidentity,havecertainbiological,chemical,andphysicalcharacteristicsincommon.
HowmanypeopleareawarethatadancerwiththeNewYorkCityBallettypicallywearsoutaminimumoftwohundredpairsoftoeshoesperyear?
Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.
