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.
| 701. |
The example of plants that are reproduced by grafting includes |
| A. | plum trees |
| B. | peach trees |
| C. | seedless grapes |
| D. | all of above |
| Answer» E. | |
| 702. |
The time of development from rabbit embryo to offsprings is |
| A. | 20-30 days |
| B. | 45-50 days |
| C. | 32-40 days |
| D. | 30-32 days |
| Answer» E. | |
| 703. |
The meiosis-II completion in secondary oocyte leads to the production of |
| A. | six diploid cells |
| B. | six haploid cells |
| C. | two diploid cells |
| D. | two haploid cells |
| Answer» E. | |
| 704. |
Binary fission means division into |
| A. | two |
| B. | three |
| C. | four |
| D. | five |
| Answer» B. three | |
| 705. |
The mature sperms are accumulated in the collecting ducts of |
| A. | testes |
| B. | urethra |
| C. | urinary tract |
| D. | gall bladder |
| Answer» B. urethra | |
| 706. |
After the release of sperms in the ovule, the sperms enter into the |
| A. | female gametophyte |
| B. | male gametophyte |
| C. | female sporophyte |
| D. | female gametophyte |
| Answer» E. | |
| 707. |
Bacterial spores are called |
| A. | sporangia |
| B. | cysts |
| C. | endospores |
| D. | none of above |
| Answer» D. none of above | |
| 708. |
Considering vegetative propagation, the lateral stems that are clause to the level of the ground are classified as |
| A. | stem tubers |
| B. | shoot tubers |
| C. | suckers |
| D. | root tubers |
| Answer» D. root tubers | |
| 709. |
The glands which are responsible for the secretion to neutralize the fluid (semen) acidity are known as |
| A. | Cowper's glands |
| B. | seminal glands |
| C. | spermatogonia glands |
| D. | prostate glands |
| Answer» E. | |
| 710. |
Colocasia are reproduced by |
| A. | bulbs |
| B. | corms |
| C. | rhizomes |
| D. | stem tubers |
| Answer» C. rhizomes | |
| 711. |
Cervix separates the uterus from |
| A. | vagina |
| B. | ovary tube |
| C. | follicle tube |
| D. | fallopian tube |
| Answer» B. ovary tube | |
| 712. |
The embryonic stem below the point of attachment is called |
| A. | epicotyl |
| B. | hypocotyl |
| C. | Plumule |
| D. | radicle |
| Answer» C. Plumule | |
| 713. |
The process which undergoes in the primary oocytes is classified as |
| A. | meiosis-II |
| B. | meiosis-I |
| C. | mitosis-II |
| D. | mitosis-I |
| Answer» C. mitosis-II | |
| 714. |
Hydra and corals reproduce through |
| A. | spore formation |
| B. | fragmentation |
| C. | budding |
| D. | binary fission |
| Answer» C. budding | |
| 715. |
Carbon dioxide is released back to the environment by |
| A. | photosynthesis |
| B. | respiration |
| C. | oxidation |
| D. | reduction |
| Answer» C. oxidation | |
| 716. |
Mercury and lead can cause |
| A. | cancer |
| B. | Tuberculosis (TB) |
| C. | liver disorder |
| D. | joint diseases |
| Answer» E. | |
| 717. |
The nitrates are utilized for protein making and are absorbed by |
| A. | phytoplankton |
| B. | protozoan |
| C. | plants |
| D. | animals |
| Answer» D. animals | |
| 718. |
Which of the following statements is not true about parasitism? |
| A. | host cannot survive without parasite |
| B. | parasite cannot survive without host |
| C. | parasite causes harm to host |
| D. | disease causing viruses are permanent parasites |
| Answer» B. parasite cannot survive without host | |
| 719. |
Ectoparasite are |
| A. | leech |
| B. | roundworm |
| C. | tapeworm |
| D. | Ascaris |
| Answer» B. roundworm | |
| 720. |
The main component of many biomolecules is |
| A. | carbon |
| B. | sulphur |
| C. | potassium |
| D. | nitrogen |
| Answer» E. | |
| 721. |
Where does Rhizobium live? |
| A. | animal stomach |
| B. | human intestine |
| C. | animals brain |
| D. | root nodules |
| Answer» E. | |
| 722. |
The minerals are used as nutrients by |
| A. | decomposer |
| B. | producer |
| C. | consumer |
| D. | autotrophs |
| Answer» C. consumer | |
| 723. |
The lakes and forests are best classified as examples of |
| A. | artificial ecosystem |
| B. | natural ecosystem |
| C. | natural biosphere |
| D. | artificial biosphere |
| Answer» C. natural biosphere | |
| 724. |
The hydrocarbons (alkanes and alkenes), oxides of nitrogen (NO, NO2) and Sulfur (SO, SO2, SO3) and fluorine (F2) are released by the |
| A. | fertilizer industries |
| B. | thermal industries |
| C. | textile industries |
| D. | steel industries |
| Answer» B. thermal industries | |
| 725. |
Ecology is the study of the relationship between the organism and their |
| A. | climate |
| B. | weather |
| C. | plants |
| D. | environment |
| Answer» E. | |
| 726. |
The examples of tertiary consumers or secondary carnivores are |
| A. | plants and protozoan |
| B. | cattle and deer |
| C. | lions and tigers |
| D. | owls and wolves |
| Answer» E. | |
| 727. |
The landslides, global warming, floods, and soil erosions are all the effects of |
| A. | deforestation |
| B. | afforestation |
| C. | overpopulation |
| D. | global warming |
| Answer» B. afforestation | |
| 728. |
The name of the United Nations organization which advice on prevention of greenhouse gases is |
| A. | intergovernmental panel on climate change |
| B. | international panel on climate change |
| C. | interregional bureau on climate change |
| D. | intergovernmental panel of climate control |
| Answer» B. international panel on climate change | |
| 729. |
The harmful effects of ultraviolet (UV) rays are visible in Australia and |
| A. | England |
| B. | Japan |
| C. | China |
| D. | New Zealand |
| Answer» E. | |
| 730. |
The movement of inorganic compounds and elements is classified as |
| A. | geochemical cycles |
| B. | kinematic cycles |
| C. | nutrient cycles |
| D. | biomass cycles |
| Answer» D. biomass cycles | |
| 731. |
The parasites that live on the surface of the body of the host to get the food are called |
| A. | digestion parasites |
| B. | synthetic parasites |
| C. | endoparasite |
| D. | ectoparasite |
| Answer» E. | |
| 732. |
A balance between resources and the number of individuals is maintained by |
| A. | growth |
| B. | survival |
| C. | predation |
| D. | competition |
| Answer» E. | |
| 733. |
The food web is a network of |
| A. | predates |
| B. | food chains |
| C. | herbivores |
| D. | consumers |
| Answer» C. herbivores | |
| 734. |
The plants are considered as basic producers in the ecosystem which is said to be |
| A. | terrestrial ecosystem |
| B. | aquatic ecosystem |
| C. | chemical ecosystem |
| D. | mechanical ecosystem |
| Answer» B. aquatic ecosystem | |
| 735. |
Epiphytes growing on other plants only for |
| A. | food |
| B. | reproduction |
| C. | space |
| D. | shelter |
| Answer» D. shelter | |
| 736. |
The herbivores such as rabbits are also classified as |
| A. | secondary producers |
| B. | tertiary consumers |
| C. | primary consumers |
| D. | secondary consumers |
| Answer» D. secondary consumers | |
| 737. |
The examples of impacts of humans on the balance of the ecosystem include |
| A. | overpopulation |
| B. | urbanization |
| C. | deforestation |
| D. | all of above |
| Answer» E. | |
| 738. |
The human population was 85, 096, 000 in |
| A. | 1980 |
| B. | 1986 |
| C. | 1985 |
| D. | 1981 |
| Answer» E. | |
| 739. |
The interactions between the members of the same species are called |
| A. | interspecific interactions |
| B. | competition |
| C. | intraspecific interactions |
| D. | predation |
| Answer» D. predation | |
| 740. |
The breakdown of nitrogenous wastes and dead organisms proteins into ammonia is classified as |
| A. | ammonification |
| B. | assimilation |
| C. | denitrification |
| D. | nitrification |
| Answer» B. assimilation | |
| 741. |
Larvae breathe through the help of |
| A. | feeding brushes |
| B. | pair of air floats |
| C. | pair of spiracles |
| D. | pair of gills |
| Answer» D. pair of gills | |
| 742. |
Eutrophication is the enrichment of water with nitrates and |
| A. | phosphates |
| B. | ammonia |
| C. | sulphur |
| D. | nitrogen |
| Answer» B. ammonia | |
| 743. |
The examples of primary carnivores or secondary consumers are |
| A. | cattle, wolves and owls |
| B. | predatory birds, fox and snakes |
| C. | grasshopper, rabbit and deer |
| D. | fungi, protozoan and animals |
| Answer» C. grasshopper, rabbit and deer | |
| 744. |
The non-living factors of the ecosystem are called |
| A. | abiotic components |
| B. | biotic components |
| C. | biosphere components |
| D. | ecology components |
| Answer» B. biotic components | |
| 745. |
Sound receptors are present in the |
| A. | upper duct of cochlea |
| B. | lower duct of cochlea |
| C. | middle duct of cochlea |
| D. | center of cochlea |
| Answer» D. center of cochlea | |
| 746. |
Considering the lobes of the cerebral cortex, the lobe which analyzes and receives visual information is called |
| A. | occipital lobe |
| B. | temporal lobe |
| C. | parietal lobe |
| D. | frontal lobe |
| Answer» B. temporal lobe | |
| 747. |
In the middle ear, the communication between the nasal cavity and middle ear through the |
| A. | vitreous tube |
| B. | Eustachian tube |
| C. | oval window tube |
| D. | pinna ligament tube |
| Answer» C. oval window tube | |
| 748. |
The lens is attached to |
| A. | radial muscles |
| B. | circular muscles |
| C. | ciliary muscles |
| D. | all of above |
| Answer» D. all of above | |
| 749. |
The stimuli in unicellular organisms are brought with the help of |
| A. | chemicals |
| B. | glands |
| C. | cytoplasm |
| D. | golgi bodies |
| Answer» B. glands | |
| 750. |
The inner ear consists of |
| A. | malleus, incus and stapes |
| B. | vestibule, semicircular canals and cochlea |
| C. | pinna, auditory canal and ear drum |
| D. | Eustachian tube and oval window |
| Answer» C. pinna, auditory canal and ear drum | |