MCQOPTIONS
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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.
| 301. |
Which of the following mammals, has scrotal testes |
| A. | Prototherians |
| B. | All placental mammals |
| C. | Elephant |
| D. | Man |
| Answer» E. | |
| 302. |
Bats are included in the same taxonomial group as |
| A. | Birds |
| B. | Butterflies |
| C. | Flying lizards |
| D. | Whales |
| Answer» E. | |
| 303. |
Only left aortic arches are present in |
| A. | Reptiles of order crocodilus |
| B. | Birds |
| C. | Mammals |
| D. | Both (a) and (c) |
| Answer» D. Both (a) and (c) | |
| 304. |
Chief distinguishing features of the mammals are [CPMT 1983] |
| A. | Hairy skin and ovipary |
| B. | Hairy skin and mammary glands |
| C. | Mammary glands and teeth |
| D. | Pinna and teeth |
| Answer» C. Mammary glands and teeth | |
| 305. |
The mammal which possesses both the reptiles and mammalian characters [DPMT 1993] |
| A. | Marsupials |
| B. | Monotremes |
| C. | Equus |
| D. | Oryctolagus |
| Answer» C. Equus | |
| 306. |
Rabbit belongs to the order [CBSEPMT 1991] |
| A. | Rodentia |
| B. | Lagomorpha |
| C. | Artiodactyla |
| D. | Perissodactyla |
| Answer» C. Artiodactyla | |
| 307. |
Which animals have a beak with jaws but no teeth [CPMT 1995] |
| A. | Aves |
| B. | Snakes |
| C. | Mammals |
| D. | All the above |
| Answer» B. Snakes | |
| 308. |
Which is not aerial adaptation of Birds [RPMT 2001] |
| A. | Single ovary |
| B. | Pneumatic bone |
| C. | Gizzard |
| D. | Keeled sternum |
| Answer» D. Keeled sternum | |
| 309. |
Penguin is found in [CBSE PMT 1990; BHU 1997] |
| A. | Africa |
| B. | Australia |
| C. | America |
| D. | Antarctica |
| Answer» E. | |
| 310. |
Kiwi is found in [BHU 1981; CPMT 1996] |
| A. | India |
| B. | South America |
| C. | New Zealand |
| D. | East Indies |
| Answer» D. East Indies | |
| 311. |
The wishbone of the birds is derived from [CBSE PMT 1989] |
| A. | Skull |
| B. | Pectoral girdle |
| C. | Pelvic girdle |
| D. | Hindlimb |
| Answer» C. Pelvic girdle | |
| 312. |
The development of optic lobes is maximum in |
| A. | Birds |
| B. | Reptilia |
| C. | Mammals |
| D. | Amphibia |
| Answer» B. Reptilia | |
| 313. |
Pneumatic bones are found in [CBSE PMT 1996; AFMC 2000, 02] |
| A. | Domestic lizard |
| B. | Tadpole of frog |
| C. | Flying lizard |
| D. | Pigeon |
| Answer» E. | |
| 314. |
Pneumatic bones of birds |
| A. | Increase the respiratory rate |
| B. | Increase the heart beat rate |
| C. | Increase the CO2 output |
| D. | Increase the buoyancy |
| Answer» E. | |
| 315. |
Ancestral amphibians were tetrapods that evolved during [BHU 2002] |
| A. | Ordovician |
| B. | Silurian |
| C. | Devonian |
| D. | Carboniferous |
| Answer» D. Carboniferous | |
| 316. |
Frog is [CPMT 1994] |
| A. | Aminotelic |
| B. | Ammonotelic |
| C. | Ureotelic |
| D. | Uricotelic |
| Answer» D. Uricotelic | |
| 317. |
Tailless amphibians are the members of the group |
| A. | Salientia (Anura) |
| B. | Gymnophiona (Apoda) |
| C. | Urodela (Caudata) |
| D. | Cyclostomata |
| Answer» B. Gymnophiona (Apoda) | |
| 318. |
A frog lives in water or near water because [DPMT 1984] |
| A. | It can get its food easily in water |
| B. | Its hindlimbs are webbed and help in swimming |
| C. | It can see through its transparent eyelids while swimming |
| D. | It respires through the skin |
| Answer» E. | |
| 319. |
Absence of thumb is characteristic of [APMEE 1981] |
| A. | Rabbit |
| B. | Man |
| C. | Frog |
| D. | Monkey |
| Answer» D. Monkey | |
| 320. |
Assertion : The fangs of snake is the maxillary teeth. Reason : The poison apparatus in snake consists of poison gland, ducts and fangs. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 321. |
Assertion : In frog, the tongue can be thrown out and retracted suddenly. Reason : Retraction in frog's tongue occurs due to a sudden flow of lymph. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 322. |
Assertion : Respiration in Amphioxus is done by both water and blood. Reason : Amphioxus is aquatic and possesses blood. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 323. |
Assertion : Urochordata is often known as tunicata. Reason : Tunicin is present in its alimentary canal. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 324. |
Assertion : Asterias has a small intestine. Reason : Asterias takes predigested food material from the host body. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 325. |
Assertion : Torsion can be seen in ctenidium. Reason : Ctenidium acts as the respiratory organ. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 326. |
Assertion : Sponges are less specialized ones. Reason : Sponges show a high power of regeneration. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 327. |
Assertion : Palaemon maintains orientation and equilibrium by statocysts. Reason : Statocysts are supplied by nerves. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» C. If the assertion is true but the reason is false | |
| 328. |
Assertion : Pygidium is present in clamworm. Reason : Pygidium help in reproduction. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |
| 329. |
Assertion : Liver fluke has undergone great modification to adapt itself with the parasite life. Reason : The modification in liver fluke is to suit its existence as an endoparasite in the bile duct of sheep. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 330. |
Assertion : F.hepatica has incomplete alimentary canal. Reason : Fasciola lacks anus. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion | |
| 331. |
Assertion : Hippopotamus is completely aquatic mammals. Reason : Hippopotamus lives on land but go into water for food and shelter. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» F. | |
| 332. |
Assertion : Coprophagy is the characteristic of mammal. Reason : Coprophagy is found in all mammals. |
| A. | If both the assertion and the reason are true and the reason is a correct explanation of the assertion |
| B. | If both the assertion and reason are true but the reason is not a correct explanation of the assertion |
| C. | If the assertion is true but the reason is false |
| D. | If both the assertion and reason are false |
| E. | If the assertion is false but reason is true |
| Answer» D. If both the assertion and reason are false | |