Animal 2 answers even

2) a gastrovascular cavity.

4) amoebocytes.

6) chitin

8) choanocyte

10) tube feet

12) spiracles and tracheae.

14) Scyphozoa

16) a digestive system with a single opening

18) rotifers.

20) encysted in the muscle of an animal such as a cow or pig.

22) Porifera-gastrovascular cavity, coelom present

24) for feeding.

26) mollusc.

28) Ia mantle

30) Polyplacophora

32) Cephalopoda

34) b

36) e

38) d

40) a water vascular system

42) an open circulatory system.

44) Nematoda; a circulatory system.

46) trichinella worms

48) radically different appearance between adults and earlier life stages

50) wings.

52) chelicerae.

54) millipede.

56) b

58) e

60) d

62) c

64) e