Complete the missing links.
AZT is used for the victims of ………….

Complete the missing links: Tube feet of echinoderms help in …………… and …………………. .

Complete the missing links: True coelom orginated firstly in …………. .

Complete the missing links: A tendon attaches a ……………. To a ……………………… .

Complete the missing links: COD stands for _________

Complete the missing links: The excretion in insects is by …………………. .

Complete the missing links: Cocoon is secreted by ……………….

Complete the missing links: Leech stores the sucked blood in …………… .

Complete the missing links: Sexual phase of Nereis is called ………….. .

Complete the missing links. Micro-organism used to produce lactic acid through fermentation process is known as………..

Complete the missing links: Exoskeleton of cockroach is ……………. .