Arrange the following organs in the antero-posterior order of the earthworm body: Intestinal caeca, gizzard, blood glands, testes, ovary, clitellum

Arrange the following words into two groups and give and appropriate heading to each group. Testes, oviduct, cloaca, Bidder's canal, ovaries, urinogenital duct, vasa efferentia, cloaca.

Among the following, select the correct statements. (a) In majority of higher plants and animals, growth and reproduction are mutually exclusive events. (b) In non-living objects growth is byaccumulation of material on the surface. (c) An isolated metabolic reaction outside the body of an organism, performed in a test tube is neither living nor non-living. (d) All organisms, from the prokaryotes to the most complex eukaryotes can sense and respond to environmental cues.

Mention the function of the following : a) Blood glands of 'Pheretima' b) Hepatic caeca of 'Periplaneta americana'.