With regard to the respiratory system and the process of respiration in man, answer the following questions:
Briefly describe how the above mentioned muscles help in the inspiration of air.

With regard to the respiratory system and the process of respiration in man, answer the following questions: Name the two muscles that help in breathing.

With regard to the respiratory system and the process of respiration in man, answer the following questions: What is meant by: 1. Residual air 2. Dead air space.

Answer the following questions briefly. Mention two features of a Neanderthal man.

With respect to the titration of acid and base. Answer the following questions : Name the indicator used in the above process.

Study the diagram given below and then answer the questions. Briefly describe how nitrogen of the atmosphere is converted to nitrates by leguminous plants.

Study the experimental set given below and answer the following questions : Name the chemical filled in the test tubes. Explain how the above mentioned chemical would interfere with the experiment.

Study the experimental set-up given below and answer the following questions: Name the liquid filled in the test tube. Explain how the above mentioned chemical would interfere with the experiment.

The diagram given belwo represents a system in the human body. Study the diagram and answer the following question: Mention the number and the name of the part involved in fertilization and implantation from the above diagram.

Study the ladder of human evolution given above and answer the following questions. (i) Where did Australopithecus evolve? (ii) Write the scientific name of Java man?

Briefly answer the following questions. Anaerobic respiration by yeast cells yields two end products. Name them.