Which life process converts chemical energy into heat energy?
Which of these is the simplest food?
Which one of the following organisms has a saprophytic mode of nutrition.
Which of these is not a raw material for photosynthesis?
The food is stored in which form in leaves?
What is the colour of iodine-starch complex?
What is the term for process of taking food in the body?
The salivary gland secretes which of these enzymes?
Respiration is a process in which
Which one of the following organisms can live without oxygen of air.
Haemoglobin is a type of
When air is blown from mouth into a test – tube containing lime water, the lime water turned milky due to presence of –
In normal expiration, the diaphragm is
During expiration, the intercostal muscles and the diaphragm are relaxed leading to decrease in the volume of the thoracic cavity so that the air is expired from the lungs. The relaxed diaphragm gets arched up forming a dome.
The xylem in plants are responsible for
The autotrophic mode of nutrition requires