Observe the diagram given as Figure 1.1 and label the following terms given in the box.

stomatal opening, guard cell

Wheat dough if left in the open, after a few days, starts to emit a foul smell and becomes unfit for use. Give reason.

Sunlight, chlorophyll, carbon dioxide, water and minerals are raw materials essential for photosynthesis. Do you know where they are available? Fill in the blanks with the appropriate raw materials. (a) Available in the plant : _______________ (b) Available in the soil : _______________, _______________ (c) Available in the air : _______________ (d) Available during day : _______________

Match the organisms given in Column I with their mode of nutrition given in Column II.

Wild animals like tiger, wolf, lion and leopard do not eat plants. Does this mean that they can survive without plants? Can you provide a suitable explanation?