Fill the gaps on animal classification

Exercise and reference answers

Missing parts

1. Answer

   cellular

   Choices

   1. cellular
   2. tissue
   3. organ

2. Answer

   asymmetrical

   Choices

   1. asymmetrical
   2. radial
   3. bilateral

3. Answer

   coelom

   Choices

   1. coelom
   2. pseudocoelom
   3. blastocoel

4. Answer

   acoelomates

   Choices

   1. acoelomates
   2. coelomates
   3. diploblasts

Complete the statement

Sponges show the {0} level and are mostly {1}. A cavity lined by mesoderm is the {2}. Flatworms have none and are {3}.

Instructions

Tap a word to drop it into the empty slot.

Explanation