MCQOPTIONS
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MCQOPTIONS
This section includes 1844 Mcqs, each offering curated multiple-choice questions to sharpen your Grade10 knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
In the air passageway, the nasal cavity opens into a muscular passage which is called |
| A. | nostrils |
| B. | pharynx |
| C. | trachea |
| D. | glottis |
| Answer» C. trachea | |
| 502. |
During the night when there is no photosynthesis, the leaf cells get oxygen from |
| A. | mesophyll cell |
| B. | epidermal cell |
| C. | cuticle cell |
| D. | environment |
| Answer» E. | |
| 503. |
The length of the windpipe which is present in front of the esophagus is |
| A. | 12 cm |
| B. | 14 cm |
| C. | 14.5 cm |
| D. | 16 cm |
| Answer» B. 14 cm | |
| 504. |
All are wrong about the cyst, but that it is |
| A. | spore covering |
| B. | belt |
| C. | sac |
| D. | daughter cell |
| Answer» B. belt | |
| 505. |
The kind of fertilization in which the eggs are fertilized in the female reproductive tract is called |
| A. | diploid fertilization |
| B. | haploid fertilization |
| C. | external fertilization |
| D. | internal fertilization |
| Answer» E. | |
| 506. |
The virus that causes AIDS in humans is called |
| A. | hostile immune disorder |
| B. | human immunodeficiency virus |
| C. | human immune disorder virus |
| D. | human internal disorder virus |
| Answer» C. human immune disorder virus | |
| 507. |
Considering the corms of natural vegetative propagation, the buds are present at |
| A. | front side of corm |
| B. | backside of corm |
| C. | top of corm |
| D. | end of corm |
| Answer» D. end of corm | |
| 508. |
The urine and sperms are transported by the |
| A. | prostate vesicle |
| B. | urethra |
| C. | urinary bladder |
| D. | seminal vesicle |
| Answer» C. urinary bladder | |
| 509. |
When worms spontaneously break up into 8 or 9 pieces, the process is called |
| A. | break down of worms |
| B. | binary fission |
| C. | fragmentation |
| D. | budding |
| Answer» D. budding | |
| 510. |
The United Nations Fund for Population Activities (UNFPA) began operation in |
| A. | 1976 |
| B. | 1996 |
| C. | 1989 |
| D. | 1969 |
| Answer» E. | |
| 511. |
The fusion of female and male gametes results in |
| A. | diploid zygote |
| B. | diploid spores |
| C. | haploid spores |
| D. | diploid spores |
| Answer» B. diploid spores | |
| 512. |
The external conditions on which the germination of seeds is dependent are |
| A. | sufficient food storage and water |
| B. | live embryo |
| C. | sufficient food storage |
| D. | oxygen and water |
| Answer» E. | |
| 513. |
The occipital lobe is also responsible for analyzing |
| A. | shapes |
| B. | color |
| C. | movement |
| D. | all of above |
| Answer» E. | |
| 514. |
The outermost whorl of the flower is |
| A. | calyx |
| B. | corolla |
| C. | androecium |
| D. | gynoecium |
| Answer» B. corolla | |
| 515. |
In internal fertilization, the eggshell provides resistant to water and |
| A. | gases |
| B. | hormones |
| C. | light |
| D. | damage |
| Answer» E. | |
| 516. |
The name of the male reproductive part of the flower is |
| A. | androecium |
| B. | gynoecium |
| C. | carpel |
| D. | stamen |
| Answer» B. gynoecium | |
| 517. |
The male gametophyte generation is germinated by |
| A. | endospores |
| B. | exospores |
| C. | macrospores |
| D. | microspores |
| Answer» E. | |
| 518. |
The fourth whorl in flowers is called |
| A. | androecium |
| B. | gynoecium |
| C. | corolla |
| D. | calyx |
| Answer» C. corolla | |
| 519. |
The method of artificial vegetative propagation in which stem is attached to other plants to establish roots is classified as |
| A. | grafting |
| B. | cuttings |
| C. | cloning |
| D. | tissue culturing |
| Answer» B. cuttings | |
| 520. |
Carpel has a basal ovary, middle style and |
| A. | upper stigma |
| B. | Lowe stigma |
| C. | larger stigma |
| D. | bigger stigma |
| Answer» B. Lowe stigma | |
| 521. |
The invertebrates in which asexual reproduction occurs are |
| A. | euglena |
| B. | planarian |
| C. | amoeba |
| D. | paramecium |
| Answer» C. amoeba | |
| 522. |
After the accumulation of sperms in collecting ducts of testes, the sperms are passed to |
| A. | prostate gland |
| B. | epicotyls |
| C. | epididymis |
| D. | scrotum |
| Answer» D. scrotum | |
| 523. |
In testes, the production of sperms is classified as |
| A. | oogenesis |
| B. | spermatogenesis |
| C. | primary oogonia |
| D. | gametogenesis |
| Answer» C. primary oogonia | |
| 524. |
The third whorl of flowers is called |
| A. | calyx |
| B. | corolla |
| C. | androecium |
| D. | gynoecium |
| Answer» D. gynoecium | |
| 525. |
The units of the androecium are called |
| A. | ovaries |
| B. | carpel |
| C. | stamens |
| D. | ovules |
| Answer» D. ovules | |
| 526. |
The groups of plants that are reproduced by sexual reproduction include |
| A. | ferns |
| B. | mosses |
| C. | seed plants |
| D. | all of above |
| Answer» E. | |
| 527. |
The offsprings reproduce through vegetative reproduction are |
| A. | genetically different |
| B. | genetically identical |
| C. | vegetative similar |
| D. | vegetative different |
| Answer» C. vegetative similar | |
| 528. |
The groups of plants that do not require water to carry sperms to egg cells are |
| A. | bryophytes |
| B. | gametophyte |
| C. | gymnosperms and angiosperms |
| D. | sporophyte |
| Answer» D. sporophyte | |
| 529. |
The process undergoes in the secondary oocyte is classified as |
| A. | meiosis-II |
| B. | meiosis-I |
| C. | mitosis-II |
| D. | mitosis-I |
| Answer» B. meiosis-I | |
| 530. |
The mass of coiled tubes in each of the two testes is called |
| A. | scrotum tubes |
| B. | seminal tubes |
| C. | seminiferous tubules |
| D. | prostate tubules |
| Answer» D. prostate tubules | |
| 531. |
All the substances that are the major causes of pollution are classified as |
| A. | compounds |
| B. | acids |
| C. | oxides |
| D. | pollutants |
| Answer» E. | |
| 532. |
The kind of parasitism in which the parasite lived as a free organism and part of its life is only spent as a parasite is called |
| A. | permanent mutualism |
| B. | temporary parasitism |
| C. | permanent parasitism |
| D. | temporary mutualism |
| Answer» C. permanent parasitism | |
| 533. |
The atmosphere is the reservoir of free gaseous |
| A. | carbon |
| B. | nitrogen |
| C. | oxygen |
| D. | sulphur |
| Answer» C. oxygen | |
| 534. |
Relationship between honeyguide bird and the badger is an example of |
| A. | parasitism |
| B. | mutualism |
| C. | commensalism |
| D. | none of above |
| Answer» C. commensalism | |
| 535. |
The consumers that are fed on plants or the products of plants are called |
| A. | primary consumers |
| B. | secondary consumers |
| C. | tertiary consumers |
| D. | primary decomposers |
| Answer» B. secondary consumers | |
| 536. |
Rich algal growth leads to an increase in the number of |
| A. | fertilizer |
| B. | producer |
| C. | decomposer |
| D. | scavengers |
| Answer» D. scavengers | |
| 537. |
The cyanide (CN-), fluorine (F2), Sulfur dioxide (SO2), phenol (C6H5), carbon dioxide (CO2) and carbon monoxide (CO) are pollutants released by |
| A. | textile industries |
| B. | steel industries |
| C. | fertilizer industries |
| D. | thermal industries |
| Answer» C. fertilizer industries | |
| 538. |
The living part of living organisms of the ecosystem is called |
| A. | biosphere components |
| B. | ecology components |
| C. | abiotic components |
| D. | biotic components |
| Answer» C. abiotic components | |
| 539. |
The living part of the ecosystem is made by |
| A. | air and water |
| B. | soil and water |
| C. | abiotic components |
| D. | biotic components |
| Answer» E. | |
| 540. |
Primary carnivores are also called |
| A. | omnivores |
| B. | primary consumers |
| C. | secondary consumers |
| D. | tertiary consumers |
| Answer» D. tertiary consumers | |
| 541. |
The kind of symbiosis in which only one partner is benefited and the other is not harmed and benefited is called |
| A. | temporary parasitism |
| B. | temporary mutualism |
| C. | permanent mutualism |
| D. | commensalism |
| Answer» E. | |
| 542. |
The result of incomplete dominance leads to |
| A. | ternary phenotype |
| B. | ternary genotype |
| C. | intermediate phenotype |
| D. | intermediate genotype |
| Answer» D. intermediate genotype | |
| 543. |
The cross in the first filial generation produces the generation called |
| A. | F1 generation |
| B. | G2 generation |
| C. | F2 generation |
| D. | G1 generation |
| Answer» D. G1 generation | |
| 544. |
The theory which states that the present form of organisms is created only a thousand years ago is called the theory of |
| A. | special creation |
| B. | special selection |
| C. | artificial selection |
| D. | special dominance |
| Answer» B. special selection | |
| 545. |
The expression of the genotypes in the form of a particular trait is called |
| A. | monohybrid genotype |
| B. | translated genotype |
| C. | phenotype |
| D. | hybrid genotype |
| Answer» D. hybrid genotype | |
| 546. |
The trait "wrinkled seeds" was declared by Mendel as |
| A. | dominant |
| B. | recessive |
| C. | genotype |
| D. | phenotype |
| Answer» C. genotype | |
| 547. |
Female gonads are called |
| A. | ovaries |
| B. | ovules |
| C. | testes |
| D. | sperms |
| Answer» B. ovules | |
| 548. |
The enlarged portions of the rhizomes are called |
| A. | stems |
| B. | nodes |
| C. | shoots |
| D. | roots |
| Answer» C. shoots | |
| 549. |
When mitosis is undergone in macrospore, this results in |
| A. | endosperm nucleus |
| B. | egg cell |
| C. | sperm |
| D. | exosperm nucleus |
| Answer» C. sperm | |
| 550. |
The plant groups that have motile sperms and sperms swim to the egg cell is called |
| A. | adventitious roots and shoots |
| B. | ferns and mosses |
| C. | seed plants |
| D. | corals and bacillus |
| Answer» C. seed plants | |