Which of the following is the characteristic feature of poriferans?

Which of the following organisms are called invertebrates?

Which of the following organisms form shells over their bodies?

Which of the following organisms possess flattened bodies?

Which of the following organisms causes ‘elephantiasis’ in humans?

Which of the following organisms is free living?

Which of the following is not a characteristic feature of annelides?

Which of the following is not an echinoderm?

Which of the following organisms is not an arthropod?

Which of the following organisms possess jointed legs?

Which of the following organisms is called a 'friend of farmers'?

Which of the following organisms can live both on land and water?

Which of the following are warm-blooded organisms?

Which of the following cannot survive outside the water?

Which of the following is not a characteristic feature of 'Pisces'?

Which of the following organisms is harmful to human beings?

Which of the following organisms does not possess a four chambered heart?

Which of the following is not a characteristic feature of reptiles?

Which of the following reptiles has a four chambered heart?

Which among the following is not an amphibian?