Telegram group: T.me/BBCNOUN
======
BIO211
======

1. The anticoagulant secreted by leeches which they inject into their host is called ________

	      Cellulose

	--->> Hirudin

	      Poison

	      Toxin

2. The respiratory capacity of Annelid worms is usually enhanced by the respiratory pigment called ___________

	--->> Erythrocruorine

	      Erythrocyte

	      lymphocytes

	      lymphocruorine

3. _______ is a false body cavity which surrounds the gut, but lacks a pertoneal lining

	      Eucoelomate

	      Schizocoel

	--->> Pseudocoelomate

	      Acoelomate

4. The name Annelida is derived from the word anellus, which means _________

	      Soft body

	      Cylinderical

	      Wet body

	--->> Little ring

5. The nerve concentration that controls the action of a segment in annelids worms is known as ________

	      Septa

	      Seta and muscular contraction

	--->> Ganglia

	      Muscle fibre

6. Which of the following classes of worms posses an ectoparasitic feature?

	--->> Hirudinea

	      Oligochaeta

	      Polychaeta

	      Polychaeta

7. all of the except ____________ is not a level of organisnization in living organisms?

	      Cytoplasm

	      Tissue

	      Organ

	--->> Nucleus

8. The anterior segment in Anelids worms which projects above the mouthe region is called ________

	      Peristomium

	--->> Prostomium

	      Oral groove

	      None of the above

9. The common names for the members of class Polychaeta is ______________

	      Faltworms

	      Round worms

	--->> Bristle worms

	      Segamented worms

10. ____________ is an embryonic development that characterizes echinoderms and chordates?

	      Prostostome

	--->> Deuterostome

	      Schizocoelom

	      Enterocoelums