2023 – 2024 OP ZOO 1 (100% ERROR-FREE)

1.A contemporary of Charles Darwin who came to the same conclusion in the matter of organic evolution was- (A) Jean Baptist Lamarck (B) Thomas Huxley (C) Alfred Russel Wallace (D) Franklin Benjamin correct answers (C) (SSC CGL 2014) Exp: Alfred Russell Wallace was a British naturalist and was a contemporary of Charles Darwin, Both came to the same conclusion on the matter of organic evolution. This was announced by Linnaean society, on July 1, 1958. Organic evolution is defined as the change in organism with respect to their environment. 2.Panda belongs to the same family as that of- (A) Whale (B) Bear (C) Kangaroo (D) Porcupine correct answers (B) (SSC CISF.ASI 2013) Exp: Panda and Bear belongs to the family - Ursidae. Scientific name of Panda is - Ailuropoda melanoleuca Panda is a native to south central china. Panda survive on the diet of Bamboo. Both Bear and Panda are listed in the IUCN'S endangered list. 3.The largest invertebrate is a/an- (A) Sponge (B) Mollusca (C) Arthropoda (D) Echinodermata correct answers (B) (SSC CGL, 2012) Exp: The largest invertebrate belongs to the phylum mollusca. Giant squid (Architeuthis dux) can grow up to the length of 59ft belongs to phylum mollusa. In terms of number of organism mollusca is the second largest phylum after Arthropoda. 4.What is a sponge? (A) A fossil (B) A plant (C) An animal (D) A fungus correct answers (C) (SSC (10+2) 2012) Exp: Sponge is an aquatic animal, belong to phylumporiferea. Organism bear pores called as ostia and osculum in neck region of these organism. They have a canal system as they need continuous current of water flowing through their bodies for respiration, excretion, nutrition and reproduction. 5.Normally, animals can change the place, but which one of the following animals cannot change the place? (A) Starfish (B) Sponge (C) Hydra (D) Leech correct answers (C) (SSC (10+2) 2012) Exp: Animals which cannot change their place are termed as sessile or sedentary. Hydra belongs to phylum Cnideria and class Hydrazoa. It is a immobile aquatic organism resides on a substratum. 6.Which of the following is a true fish? (A) Silverfish (B) Starfish (C) Dogfish (D) Shellfish correct answers (C) (SSC CGL, 2012) Exp: Dog fish is a true fish. It belongs to the family of sharks and phylum Chordata. Common name of dog fish is Scoliodon and scientific name is Squalus acanthias Dogfish is in the list of IUCN as an vulnerable organism. 7.Which of the following Amphibian lacks tongue? (A) Sphenodon (B) Salamander (C) Ichthyophis (D) Necturus correct answers (C) (SSC (10+2) Exam, 2012) Exp: Ichthyophis belongs to class Amphibia of phylum Chordata. These are limbless and tongue less organism, lives in moist soil and lead a burrowing life. It is an elongated organism and can measure up to 30 cm in length.