Arrange and rewrite the terms in each group in the correct order so as to be in a logical sequence beginning with the term that is underlined.

(a) Apical meristem, Positive phototropism, Auxins, Cell elongation.

(b) Urethra, Urinary bladder, Ureter, Kidney.

(c) Auditory canal, Organ of Corti, Stapes, Malleus.

(d) Cell membrane, Chromatin fibres, Cell wall, Cytoplasm.

(e) Lungs, Right auricle, Inferior venacava, Pulmonary Artery.

Read the explanations given below and name the structure:

Example: The largest gland in the human body that secretes bile.

Answer: Liver.

(a) Food conducting tissue in vascular plants.

(b) A cell formed by the fusion of gametes.

(c) The smallest blood vessels in the human body.

(d) A tubular passage that connects the pharynx and the middle ear.

(e) The openings on the barks of trees through which transpiration occurs.

Explain the term — Active transport.

Name the structures through which Transpiration and Guttation occur in a plant.