Non Chordates PDF Past Paper TARGET: PRE-MEDICAL 2021

# ANIMAL KINGDOM (BASIS OF CLASSIFICATION) # 01 1. Nervous system is found in - Annelida - Ctenophore 2. This type of symmetry is found in? - Bilateral symmetry 3. How many statements are correct? - In open circulatory system blood is circulated through series of vessels of varying...

# ANIMAL KINGDOM (BASIS OF CLASSIFICATION) # 01 1. Nervous system is found in - Annelida - Ctenophore 2. This type of symmetry is found in? - Bilateral symmetry 3. How many statements are correct? - In open circulatory system blood is circulated through series of vessels of varying diameter - Sponges are bilaterally symmetrical - When any plane passing through the central axis of the body divides the animal into two identical halves such symmetry is called bilateral symmetry. - In Platyhelminthes digestive system is incomplete type. - Two 4. Choose the group which belongs to the given figure: - Platyhelminthes, aschelminthes and annelids 5. Match the columns and choose the correct answer from the options given below: | COLUMN (A) | COLUMN (B) | |-----|-----| | Triploblastic | Mesodermal in origin | | Notochord | Three germ layers | | Metamerism | True segmentation | - A- ii, B- iii, C- iv 6. Coelom is lined by - Mesoderm 7. Organ level of organisation is found in: - Annelida 8. Segmentation with a serial repetition of at least some organ is called - Metamerism 9. Find out the incorrect statement - In pseudocoelom, mesoderm is found as scattered pouches - Echinoderms, Arthropoda, Aschelminthes, Annelids are eucoelomates. - In Tapeworm body cavity is absent. 10. Triploblastic, complete digestive tract, eucoelomate, metameric segmentation are found in: - Cockroach 11. If mouth is present and anus is absent. This type of body plan is called: - Blind sac body plan 12. Which of the following statement is incorrect: - Notochord is mesodermally derived structure formed on the dorsal side during development of all invertebrates - In annelids closed type of blood vascular system is present - Animals in which anus is formed earlier than mouth are called deuterostomiate 13. Open type of circulatory system is the system in which blood is pumped out of the heart and the cells and tissues are directly bathed in it. This type of circulatory system is found in: - Arthropoda, mollusca, echinodermata # ANIMAL KINGDOM (PORIFERA, COELENTERATA AND CTENOPHORA) # 02 1. Which of the following is not the feature of animals of Porifera? - They have a water vascular system 2. Exclusive feature of members of phylum Porifera - Ostia - Spongocoel - Choanocytes - Hermaphrodite animals - Internal fertilisation 3. Type of digestion in Porifera and Coelenterata | | Porifera | Coelenterata | |----|--------------------|-----------------| | 1. | Extracellular | Intracellular | | 2. | Intracellular | Extracellular, Intracellular | | 3. | Intracellular | Extracellular | | 4. | Extracellular | Extracellular | 4. They are aquatic, mostly marine, sessile or free swimming, radially symmetrical animals. Cnidoblasts are present on the tentacles. These animals are - Coelenterate 5. Match the columns and choose the correct answer from the options given below | Column A | Column B | |----------|----------| | Porifera | Sea walnuts | | Coelenterate | Diploblastic | | Ctenophore | Cnidoblasts | | | Spongocoel | 6. Which of the following is not a character of Ctenophora? - Digestion is only intracellular 7. Pick out the odd one - Sycon 8. Fill up with the suitable words - Polyp - cylindrical shaped, sessile - Medusa - Umbrella shaped, free swimming 9. Identify the incorrect match - Porifera ---ostia---choanocytes---indirect development----Sycon - Porifera ---ostia---choanocytes---indirect development----Euspongia - Coelenterata -----gastrovascular cavity---Cnidoblasts----direct development---Obelia # ANIMAL KINGDOM (PLATYHELMINTHES, ASCHELMINTHES, ANNELIDA) # 03 1. The cross section of the body of an invertebrate is given below. Identify the animal which has this body plan - Taenia 2. Which of the following is a wrong statement about the given diagram? - Bilaterally symmetrical 3. Choose the option which describes the Aschelminthes with its exclusive features - Rounded unsegmented body, muscular pharynx, pseudocoelomate, females are longer than males 4. Read the following characters carefully - Organ system level of organisation - Sexes are separate - Internal fertilization - Bilateral symmetry - Pseudocoelomate 5. Find out the incorrect match about the characters of annelida - Flame cells ----help in excretion 6. From the following relationships between animal and character, mark the correct option - a-correct, b ---incorrect, c ---incorrect, d ---correct 7. Which of the following statement / character is incorrect about the diagram given above? - Posses lateral appendages, parapodia which help in reproduction # ANIMAL KINGDOM (ARTHROPODA, MOLLUSCA, ECHINODERMATA, HEMICHORDATA) # 04 1. In which of the following phyla, excretory organ is proboscis gland? - Hemichordata 2. In phylum echinodermata the adult echinoderms are radially symmetrical. Whereas larva are bilaterally symmetrical. 3. A file like rasping organ for feeding called radula, present in the phylum - Mollusca 4. Which of the following phyla is being described by the given statements? - They are bilaterally symmetrical, triploblastic, segmented and coelomate animals - Circulatory system is open type - Excretion takes place through malpighian tubules - the body consist of paired jointed appendages - Arthropoda 5. Which of the following is not a characteristic of phylum echinodermata? - they have bilateral symmetry at larval stage 6. Which of the following statement is / are correct regarding phylum mollusca? - They are bilaterally symmetrical, triploblastic and acoelomate animals - Body is covered by calcareous shell and is unsegmented with a distinct head, visceral hump and muscular foot - the mouth contain a file like rasping organ for feeding called radula 7. Match the following columns and choose the correct answer from the options given below | Scientific name | Common name | |-----------------|----------------| | Apis | King crab | | Bombyx | Honey bee | | Laccifer | Silkworm | | Limulus | Lac insect | - IV, III , II, I 8. Find the incorrect statement regarding hemichordata - True notochord is present - Development is indirect - Post anal tail is absent 9. In which of the following the animal name, its two characters and its phylum / class are correctly matched? | Animal name | Two characters | Phylum | |----------|----------------|---------| | Pila | Body segmented, mouth with radula | Mollusca | | Asterias | Spiny skin, water canal system | Echinodermata | | Periplanata | Jointed appandages, chitinous exoskeleton | Arthropoda | | Saccoglossus | Post anal tail present, respire by gills | Hemichordata | #