Whittaker classified organisms into five kingdoms. Of these the last kingdom is divided into two groups, invertebrates and vertebrates. Answer the following questions about this group:
Animals of which phylum have a soft unsegmented body that can be divided into three parts? Name the three parts of their body.

Whittaker classified organisms into five kingdoms. Of these the last kingdom is divided into two groups, invertebrates and vertebrates. Answer the following questions about this group: Animals of which phylum give birth to young ones? Mention two more characteristic features of this phylum.

Whittaker classified organisms into five kingdoms. Of these the last kingdom is divided into two groups, invertebrates and vertebrates. Answer the following questions about this group: Which phylum comprises animals that may exist in either of two forms: one that is attached to the ocean floor and the other that is free-floating? Mention one more characteristic feature of this phylum.

The table shows a part of the periodic table, with some elements in their position. Answer the following questions: Name two more elements in group 2.

The table shows a part of the periodic table, with some elements in their position. Answer the following questions: Name atomic numbers of three elements in the halogen group.

Given alongside is a diagram of the human heart showing its internal structure. Label the parts marked 1 to 6, and answer the following questions. Name the main artery which takes the blood from heart to different parts of the body.

Study the diagram given below and answer the questions that follow: Name the structure shown in the diagram. State in which part of the body it is present.

Study the diagram given below and answer the questions that follow : Name the structure shown in the diagram. It is a part of which system of the human body?

Study the diagram given below and answer the questions that follow : Name the structure given in the diagram. State in which part of the body it is present.

A candidate is required to answer 7. questions out of 12 questions which are divided into two groups each containing 6 questions. He is not permitted to attempt more than 5 questions from each group. The number of ways in which he can choose the 7 questions is

In which of the following vertebrate group/groups,heart does not pump oxygenated blood to different parts of the body ?