Last seen: Jan 13, 2022
(b) Echinoidea Explanation: Aristotle’s lantern is a chewing toothed apparatus in class echinoidea of phylum echinodermata.
(a) aves Explanation: Presence of air passages in the bones (pneumatic bones) is a characteristic of birds.
(c) chemical stimulus Explanation: Hydra recognizes its prey by a chemical stimulus.
(a) radial symmetry Explanation: The organisms attached to substratum generally possess radial symmetry. Radial animals are usually sessile, freel...
(c) trichome Explanation: Nostoc is a colonial cyanobacterium. It contains a number of interwined filaments on the periphery, a mucilage filled ho...
(b) wings Explanation: Larva of housefly is legless, headless and wingless maggot.
(c) ammonotelic Explanation: Aquatic reptiles are ammonotelic. Their main excretory product is nitrogenous ammonia. Availability of water makes th...
(c) Cockroach and Pila Explanation: Presence of haemocoel (a blood filled body cavity) is a characteristic of arthropods and molluscs, e.g. cockro...
(a) Liver Explanation: Chloragogen cells of earthworm are similar to the liver of vertebrates because of the connection with storage and synthesis...
(b) choanocytes Explanation: Sponges capture food with the help of flagellated cells/collar cells/choanocytes. These cells maintain a flow of wate...
(b) metatherians Explanation: Pouched mammals are metatherians or marsupials because their female has a pouch or marsupium containing the teats fo...