Animal Kingdom
A worksheet on the classification and characteristics of different animal phyla, based on Chapter 4. Total marks: 40.
Section A: Fill in the Blanks [20 Marks]
Complete the following statements with the correct term.
In sponges, the cells are arranged as loose cell aggregates, exhibiting a ________ level of organisation.
In coelenterates, cells performing the same function are arranged into tissues, which is called the ________ level of organisation.
The digestive system in Platyhelminthes has only a single opening to the outside of the body and is hence called ________.
In a ________ type of circulatory system, the blood is circulated through a series of vessels of varying diameters.
Animals like annelids and arthropods, where the body can be divided into identical left and right halves in only one plane, exhibit ________ symmetry.
Section B: Multiple Choice Questions [20 Marks]
Choose the single correct answer for each question.