MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 332 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
The small pores which help water to enter the body of sponges are called |
| A. | enteron |
| B. | otia |
| C. | osculum |
| D. | None of Above |
| Answer» C. osculum | |
| 202. |
The larva which resembles its adult is called |
| A. | pupa |
| B. | chrysalis |
| C. | nymph |
| D. | None of Above |
| Answer» D. None of Above | |
| 203. |
The pores which helps in removal of water from body of sponges are called |
| A. | ostulus |
| B. | osculum |
| C. | ostia |
| D. | spongecoel |
| Answer» C. ostia | |
| 204. |
The cylindrical body of a Sea Anemone can be cut in to two equal halves vertically in any plane, there it belong to Grade |
| A. | Radiata |
| B. | Bilateria |
| C. | Both A and B |
| D. | None of Above |
| Answer» B. Bilateria | |
| 205. |
The largest living vertebrates are known to be |
| A. | whales |
| B. | crocodiles |
| C. | sharks |
| D. | dinosaurs |
| Answer» D. dinosaurs | |
| 206. |
There is gelatinous layer mesenchyme which is present between pinachoderm and |
| A. | choanoderm |
| B. | epiderm |
| C. | mesoderm |
| D. | endoderm |
| Answer» B. epiderm | |
| 207. |
Class hirudinea have additional markings on their body which are called |
| A. | palpls |
| B. | suckers |
| C. | serae |
| D. | annuli |
| Answer» E. | |
| 208. |
The electric shock which can stun a prey is the specialized feature of |
| A. | ray fish |
| B. | dolphin |
| C. | shark |
| D. | goldfish |
| Answer» B. dolphin | |
| 209. |
The largest group of arthropods exists in the class |
| A. | insecta |
| B. | Arachnida |
| C. | Myriapodia |
| D. | None of Above |
| Answer» B. Arachnida | |
| 210. |
Adult Urochordates are sessile and covered by a layer called |
| A. | tunic |
| B. | craniates |
| C. | Both A and B |
| D. | None of Above |
| Answer» B. craniates | |
| 211. |
In jelly fish poly is reduced and medusae is |
| A. | low |
| B. | recessive |
| C. | dominant |
| D. | high |
| Answer» D. high | |
| 212. |
The rasping tongue like structure present on the body of molluscus is |
| A. | mantle |
| B. | setae |
| C. | radula |
| D. | slug |
| Answer» D. slug | |
| 213. |
Cnidarians are usually found in two basic forms the polyps and the |
| A. | colony |
| B. | flame cells |
| C. | cysts |
| D. | medusae |
| Answer» E. | |
| 214. |
A single rotting apple may contain ans estimated number of worms i.e., |
| A. | 90000 |
| B. | 80000 |
| C. | 70000 |
| D. | 10000 |
| Answer» B. 80000 | |
| 215. |
Coral islands and coral needs are formed by skeleton of |
| A. | coral |
| B. | sea urchin |
| C. | sea anemone |
| D. | jelly fish |
| Answer» B. sea urchin | |
| 216. |
The cavity present between body wall and elementary canal and lined mesoderm is called |
| A. | mesoglea |
| B. | coelom |
| C. | chitin |
| D. | flaggellum |
| Answer» C. chitin | |
| 217. |
Sound absorption In buildings use |
| A. | fungi |
| B. | sponges |
| C. | coral reefs |
| D. | sea anemone |
| Answer» C. coral reefs | |
| 218. |
The segments in the body of Annelids are separated with the help of |
| A. | septa |
| B. | segmental |
| C. | segmented |
| D. | none |
| Answer» B. segmental | |
| 219. |
The common name for Madrepora is |
| A. | sponges |
| B. | corals |
| C. | sycon |
| D. | urchins |
| Answer» C. sycon | |
| 220. |
All the biologists believe that virtually all the animals have been evolved from |
| A. | protoctist |
| B. | bryophytes |
| C. | monera |
| D. | porifera |
| Answer» B. bryophytes | |
| 221. |
The shedding of exoskeleton is called |
| A. | molding |
| B. | ecdysic |
| C. | Both A and B |
| D. | None of Above |
| Answer» D. None of Above | |
| 222. |
The lower jaw of mammals is composed of only one |
| A. | Teeth |
| B. | bone |
| C. | cartilage |
| D. | muscles |
| Answer» C. cartilage | |
| 223. |
A fossil was found in Texas which was an early reptile |
| A. | cotylasaurs |
| B. | mammal like reptile |
| C. | varanope |
| D. | None of Above |
| Answer» D. None of Above | |
| 224. |
Daphnia belongs to class |
| A. | Arachnida |
| B. | Myriapodia |
| C. | Crustacean |
| D. | None of Above |
| Answer» D. None of Above | |
| 225. |
Giant Squid is the largest invertebrate |
| A. | bird |
| B. | animal |
| C. | mammal |
| D. | reptile |
| Answer» C. mammal | |
| 226. |
The secretions hardened in polyps and covered by stony cup in |
| A. | coral reefs |
| B. | shells |
| C. | sponges |
| D. | sea anemone |
| Answer» B. shells | |
| 227. |
The gills of bony fishes are covered by |
| A. | operculum |
| B. | dermal |
| C. | scales |
| D. | cycloid scales |
| Answer» B. dermal | |
| 228. |
Chitinous cuticle is secreted by |
| A. | endodermis |
| B. | epidermis |
| C. | cell wall |
| D. | None of Above |
| Answer» C. cell wall | |
| 229. |
A very dangerous specie of parasite which holds villi of the intestine and sucks blood and body fluid is |
| A. | hook worm |
| B. | tape worm |
| C. | moluscus |
| D. | leech |
| Answer» B. tape worm | |
| 230. |
The drainage capacity of soil is improved by burrowing activity of |
| A. | insects |
| B. | earthworms |
| C. | snakes |
| D. | termites |
| Answer» C. snakes | |
| 231. |
Echinoderms have vast number of species which are above |
| A. | 7000 |
| B. | 8000 |
| C. | 5000 |
| D. | 3000 |
| Answer» D. 3000 | |
| 232. |
Placental mammals whose hairs developed into spines are called as |
| A. | pangoline |
| B. | porcupine |
| C. | Both A and B |
| D. | None of Above |
| Answer» C. Both A and B | |
| 233. |
Sperms of sponges are released in water and taken to eggs by |
| A. | ameoboid cells |
| B. | psuedopodia |
| C. | mesoglea |
| D. | None of Above |
| Answer» B. psuedopodia | |
| 234. |
The mode of transport in diploblastic animals is |
| A. | diffusion |
| B. | osmosis |
| C. | pores |
| D. | all of these |
| Answer» B. osmosis | |
| 235. |
Tasmania wolf found in Australia belong to the class metatheria and termed as |
| A. | marsupials |
| B. | reptiles |
| C. | mammals like reptiles |
| D. | None of Above |
| Answer» B. reptiles | |
| 236. |
The animals which possesses flame cells, excretory ducts and excretory pores are termed as |
| A. | Acoelomates |
| B. | coelomates |
| C. | Both A and B |
| D. | None of Above |
| Answer» B. coelomates | |
| 237. |
The notochord is a rod like semi rigid body of |
| A. | canals |
| B. | tubules |
| C. | vacuolated cells |
| D. | vacuoles |
| Answer» D. vacuoles | |
| 238. |
The tail of sting ray can inflict very dangerous wounds by its |
| A. | fins |
| B. | gills |
| C. | sharp jaws |
| D. | sharp spines |
| Answer» E. | |
| 239. |
The anterior end of digestive system is mouth and posterior end is |
| A. | mouth |
| B. | ostia |
| C. | annus |
| D. | stomach |
| Answer» D. stomach | |
| 240. |
A typical marine sponge is |
| A. | sycon |
| B. | spogilla |
| C. | euplectella |
| D. | leucoselenia |
| Answer» B. spogilla | |
| 241. |
A layer made of polysaccharide which is non-living, vascular and secreted by epidermis is called |
| A. | epidermis |
| B. | chitin |
| C. | exoskeleton |
| D. | endodermis |
| Answer» C. exoskeleton | |
| 242. |
All animals of Grade bilateria are |
| A. | problastic |
| B. | diploblastic |
| C. | triploblastic |
| D. | None of Above |
| Answer» D. None of Above | |
| 243. |
The animals which have organized tissue and organ systems are |
| A. | protozoa |
| B. | Eumetazoa |
| C. | parazoa |
| D. | metazoa |
| Answer» C. parazoa | |
| 244. |
The gases which swim bladders can fill in their Pharynx are Oxygen, CO2 and |
| A. | nitrogen |
| B. | hydrogen |
| C. | CO |
| D. | Helium |
| Answer» B. hydrogen | |
| 245. |
Amphioxus is a sub-phylum |
| A. | Cephalochordate |
| B. | urochordata |
| C. | cyclostomata |
| D. | octeichtches |
| Answer» B. urochordata | |
| 246. |
The animals which lack tissues organized into organs and are asymmetrical are from subkingdom |
| A. | protozoa |
| B. | metazoa |
| C. | parazoa |
| D. | eumetazoa |
| Answer» D. eumetazoa | |
| 247. |
The cleavage in which planes of cleavage are symmetrical to the polar axis and produce tiers of cells is radial and |
| A. | spiral |
| B. | indeterminate |
| C. | determinate |
| D. | independent |
| Answer» C. determinate | |
| 248. |
The best commercial sponges are found in the warm waters of |
| A. | Mediterranean sea |
| B. | ocean |
| C. | Dead sea |
| D. | None of Above |
| Answer» B. ocean | |
| 249. |
An example of marine colonial that exhibits alternation of generations is |
| A. | star fish |
| B. | Obelia |
| C. | jelly fish |
| D. | sea urchin |
| Answer» C. jelly fish | |
| 250. |
Between ectoderm and endoderm, there is a jelly like |
| A. | medusae |
| B. | mesoglea |
| C. | cytoplasm |
| D. | water |
| Answer» C. cytoplasm | |