What is the function of platelet cells in blood?

Select the correct statement.

Name the process of loss of water in the form of vapour from the aerial parts of the plants.

$(a)$ What is the nature of food coming from the stomach?
$(b)$ Mention any two structural modifications in the small intestine which help in the absorption of food.

If a plant is releasing carbon dioxide and taking in oxygen during the day,does it mean that there is no photosynthesis occurring? Justify your answer.

$(a)$ Draw the structure of a nephron and label the following on it: Glomerulus,Bowman's capsule,Renal artery,Collecting duct.
$(b)$ What happens to glucose that enters the nephron along with the filtrate?