The function of a cell wall is
to give definite shape to the cell
to provide mechanical strength and protection to the cell
to prevent the cell from desiccation
All the above
- Who was the first scientist to use an instrument for biological studies in 1665?
- Blood cancer is otherwise called
- The spider spins its web from a liquid secreting from its
- Mendel chose for his experiments the plant
- The acid that is secreted in the stomach is
- Lamarck's theory of inheritance of acquired characters was challenged by
- Wallace's line is a line
- A few infections like sore throat, whooping cough and tuberculosis are carried through the respiratory…
- What are oncogenes?
- The energy for the sperm to swim and reach the egg is provided by
- Which of the following is NOT a viral disease?
- Antisnake venom is prepared by
- Measles is caused by
- Which one of the following seeds can benefit a patient of diabetes mellitus by normalising his blood…
- Jaundice is caused by a/an
- Milk fever in cows occurs due to lack of
- The science dealing with diseases of plants is called
- The layer of stagnant water in which light penetrates is called
- Bats can fly in the dark because
- The thrombocytes are associated with
- Phototropism means that plants react to the direction of
- Which one of the following was probably absent in the atmosphere at the time of origin of life?
- Who considered evolution as due to mutation?
- Infection of salivary glands by a virus leads to
- The valve between the right auricle and right ventricle is called
- The blood without corpuscles is called
- When a movement of a plant organ is stimulated by contact with an object, it is termed
- It is possible to produce seedless tomato fruits by
- Biological control is to check growth of
- Agroecology relates