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MCQOPTIONS
This section includes 6820 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 1201. |
What makes amphibia? |
| A. | very fast boats |
| B. | animals that can live only in water |
| C. | animals that can only live on the site |
| D. | animals that can live both in water and on land |
| Answer» E. | |
| 1202. |
Green protozoa is known as? |
| A. | amoeba |
| B. | Paramecium |
| C. | leishmania |
| D. | euglena |
| Answer» E. | |
| 1203. |
Only male frogs tremble because . . |
| A. | Female frogs do not have speech cells. |
| B. | Female frogs have well-developed speech sacs, but the vocal cords are not located in them. |
| C. | Male frogs have three pairs of vocal cords, so they can produce three times the sound. |
| D. | Male frogs can magnify their sound with the help of well-developed speech sacs. |
| Answer» B. Female frogs have well-developed speech sacs, but the vocal cords are not located in them. | |
| 1204. |
What is Archeopteryx? |
| A. | ancient bird of the Jurassic era |
| B. | jurassic reptile |
| C. | Triacid Era |
| D. | reptile of both the Triassic and Jurassic periods |
| Answer» B. jurassic reptile | |
| 1205. |
What is the specialty of the heart of fish? |
| A. | There is only pure blood from it. |
| B. | It contains only impure blood. |
| C. | Contains both pure and impure blood |
| D. | there is no blood in it |
| Answer» C. Contains both pure and impure blood | |
| 1206. |
Aristotle's lantern? |
| A. | a clean echinoderm |
| B. | chewing apparatus in the dietary system of sea urchins |
| C. | sieve ovum of sea star's transport system |
| D. | Greek country lantern |
| Answer» C. sieve ovum of sea star's transport system | |
| 1207. |
Where is silk obtained? |
| A. | from silkworm eggs |
| B. | from silkworm larvae |
| C. | silkworm pupa |
| D. | none of these |
| Answer» D. none of these | |
| 1208. |
Frogs have the nature of fertilization |
| A. | External |
| B. | Internal |
| C. | both external and internal |
| D. | this action does not happen |
| Answer» B. Internal | |
| 1209. |
Whale is a mammal because it has |
| A. | Lungs, 4-vesicle heart and vertebrae are the rods. |
| B. | Milk glands are choroid. |
| C. | There are clams and geraniums. |
| D. | There are 4 vestigial heart and lungs. |
| Answer» C. There are clams and geraniums. | |
| 1210. |
The domestic lizard climbs on a smooth wall because of the presence of? |
| A. | mouth sucker |
| B. | fingernails |
| C. | fingertip lamellae cushions |
| D. | adhesive ventral surface of animal |
| Answer» D. adhesive ventral surface of animal | |
| 1211. |
Venom glands change in poisonous snakes? |
| A. | from hepatic gland |
| B. | from pituitary gland |
| C. | from salivary gland |
| D. | from all these |
| Answer» D. from all these | |
| 1212. |
What is the protozoan that causes malaria fever? |
| A. | Paramecium |
| B. | leishmania |
| C. | plasmodium |
| D. | amoeba |
| Answer» D. amoeba | |
| 1213. |
A one-celled pathogenic parasitic protozoan living in the human intestine is? |
| A. | e . coli |
| B. | E. Histolytica |
| C. | e . gingivalis |
| D. | Trypanosoma |
| Answer» B. E. Histolytica | |
| 1214. |
What causes a disease called filariasis? |
| A. | by Ascaris |
| B. | by Wucheria Bancrafti |
| C. | by plasmodium |
| D. | by Tinea Solium |
| Answer» C. by plasmodium | |
| 1215. |
Why do cat's eyes shine at night? |
| A. | because of the special lens |
| B. | Caused by Tapitum Lucidum |
| C. | due to gene effect |
| D. | clear cause not known |
| Answer» C. due to gene effect | |
| 1216. |
lacquer is produced? |
| A. | from tree bark |
| B. | from insect feces |
| C. | from insect body secretions |
| D. | from the ovary of insects |
| Answer» D. from the ovary of insects | |
| 1217. |
Which is the carrier of malaria disease? |
| A. | male culax |
| B. | male anopheles |
| C. | female culex |
| D. | female anopheles |
| Answer» E. | |
| 1218. |
What is a characteristic feature of insect class animals? |
| A. | three pairs of feet |
| B. | two pair antennae |
| C. | a pair of antennae |
| D. | four pairs of feet |
| Answer» B. two pair antennae | |
| 1219. |
Who discovered the life cycle of malaria parasite in mosquito? |
| A. | Louis Pasteur |
| B. | by Ronald Ross |
| C. | by Charles Darwin |
| D. | Gregor Mendel |
| Answer» C. by Charles Darwin | |
| 1220. |
How does earthworm benefit the farmers? |
| A. | destroying harmful insects |
| B. | by destroying harmful bacteria |
| C. | both of the above |
| D. | by pole the ground |
| Answer» E. | |
| 1221. |
What is the distinguishing feature of mammalian class? |
| A. | mammary glands |
| B. | sweat glands |
| C. | four chambered heart |
| D. | all these |
| Answer» E. | |
| 1222. |
Archeopteryx was the planning link between whom? |
| A. | of reptiles and mammals |
| B. | birds and mammals |
| C. | of reptiles and birds |
| D. | of amphibians and reptiles |
| Answer» D. of amphibians and reptiles | |
| 1223. |
The insect can be identified from other organisms by what it has |
| A. | two pairs of wings |
| B. | three pairs of legs |
| C. | trachea |
| D. | all these |
| Answer» C. trachea | |
| 1224. |
A bat is able to fly in the dark, because its mouth emanates from? |
| A. | ultraviolet waves |
| B. | sound waves |
| C. | ultrasonic waves |
| D. | infrared waves |
| Answer» D. infrared waves | |
| 1225. |
The following substance is found in the sting of an ant or a bee? |
| A. | formic acid |
| B. | methanol |
| C. | glacial acetic acid |
| D. | oxalic acid |
| Answer» B. methanol | |
| 1226. |
Which disease in humans is caused by Ascaris? |
| A. | Tinnitus |
| B. | ascariasis |
| C. | Liver rot |
| D. | sleep disorders |
| Answer» C. Liver rot | |
| 1227. |
The bookThe Origin of Specieshas been written by? |
| A. | by Lamarck |
| B. | By Darwin |
| C. | by Oparin |
| D. | by duckel |
| Answer» C. by Oparin | |
| 1228. |
Under which union is the roundworm or thread placed? |
| A. | annelida |
| B. | Nimethelminthies |
| C. | Platyhelminthias |
| D. | orthopoda |
| Answer» C. Platyhelminthias | |
| 1229. |
Life originated? |
| A. | on the mountains |
| B. | on the ground |
| C. | by water |
| D. | by air |
| Answer» D. by air | |
| 1230. |
Where is Perivan bird found? |
| A. | Africa |
| B. | South America |
| C. | Antarctica |
| D. | North America |
| Answer» D. North America | |
| 1231. |
Which of the following is not a residual organ in humans? |
| A. | nictating curtain |
| B. | eardrum |
| C. | front flat teeth |
| D. | vermiform appendix |
| Answer» D. vermiform appendix | |
| 1232. |
Which of the following is not a genetic disease? |
| A. | hemophilia |
| B. | hypertrichosis |
| C. | meningitis |
| D. | Thalassemia |
| Answer» D. Thalassemia | |
| 1233. |
Organisms that fix nitrogen independently? |
| A. | Azotobacter |
| B. | Rhizobium |
| C. | clostridium |
| D. | streptococcus |
| Answer» D. streptococcus | |
| 1234. |
What is the residual organ in man? |
| A. | eardrum |
| B. | teeth |
| C. | small intestine |
| D. | karnapallav |
| Answer» B. teeth | |
| 1235. |
Which one of the following sequences is correct with respect to the evolution of organisms? |
| A. | Octopus - Dolphin - Shark |
| B. | pagoli - kutch - eagle |
| C. | Salamander - Python - Kangaroo |
| D. | Frog - Crab - Shrimp |
| Answer» D. Frog - Crab - Shrimp | |
| 1236. |
What is the basic principle of Lamarckism? |
| A. | Variations |
| B. | inheritance of acquired traits |
| C. | life struggle |
| D. | emergence of new organs |
| Answer» C. life struggle | |
| 1237. |
Which of the following was not found in free state at the time of origin of life? |
| A. | methane |
| B. | ammonia |
| C. | hydrogen |
| D. | oxygen |
| Answer» E. | |
| 1238. |
Are there identical parts? |
| A. | similar in composition |
| B. | similar in function |
| C. | similar in composition and function |
| D. | non commissionable |
| Answer» C. similar in composition and function | |
| 1239. |
Which nutrient is first digested in the mouth? |
| A. | protein |
| B. | carbohydrate |
| C. | fat |
| D. | starch |
| Answer» C. fat | |
| 1240. |
What are the three fundamental consequences? |
| A. | beam, length, time |
| B. | momentum, force, volume |
| C. | force, time |
| D. | beam, pressure, height |
| Answer» B. momentum, force, volume | |
| 1241. |
Such organs which may be quite dissimilar due to their use in different functions, but have similarity in their basic structure and embryonic process, are called? |
| A. | residual organ |
| B. | homozygous part |
| C. | homologous body |
| D. | homologous organs |
| Answer» E. | |
| 1242. |
Which one of the following theories was not propounded by Darwin to explain evolution? |
| A. | survival |
| B. | Organ use and application |
| C. | Origin of new races |
| D. | life struggle |
| Answer» C. Origin of new races | |
| 1243. |
rcheopteryxis the connecting link between which classes of animals? |
| A. | Amphibians and birds |
| B. | reptiles and birds |
| C. | reptiles and mammals |
| D. | birds and mammals |
| Answer» D. birds and mammals | |
| 1244. |
Is there an ecosystem? |
| A. | quiet natural area |
| B. | system of organisms and their environment |
| C. | Wildlife-rich and human-occupied areas |
| D. | very similar environmental conditions |
| Answer» C. Wildlife-rich and human-occupied areas | |
| 1245. |
Which main gas is emitted from landfill? |
| A. | carbon dioxide |
| B. | methane |
| C. | nitrogen |
| D. | hydrogen sulfide |
| Answer» C. nitrogen | |
| 1246. |
Jaggery is the main source of |
| A. | protein |
| B. | carbohydrate |
| C. | fat |
| D. | none of these |
| Answer» C. fat | |
| 1247. |
The best example of polyembryony is? |
| A. | cocos |
| B. | striss |
| C. | capsicum |
| D. | cycas |
| Answer» C. capsicum | |
| 1248. |
What is the cause of Minimata disease? |
| A. | Mercury |
| B. | cadmium |
| C. | glass |
| D. | Such as |
| Answer» B. cadmium | |
| 1249. |
What were the compounds formed in the direction of the origin of life? |
| A. | urea and nucleic acid |
| B. | amino acids and urea |
| C. | Proteins and Central Acids |
| D. | proteins and amino acids |
| Answer» D. proteins and amino acids | |
| 1250. |
in hemophilia. . . . . |
| A. | hemolysis occurs |
| B. | blood does not clot |
| C. | R. b. C . gets stuck |
| D. | WBC become cell eater |
| Answer» C. R. b. C . gets stuck | |