MCQOPTIONS
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MCQOPTIONS
This section includes 14620 Mcqs, each offering curated multiple-choice questions to sharpen your NEET knowledge and support exam preparation. Choose a topic below to get started.
| 13801. |
Larvae of beetles are known as [Kerala PMT 2004] |
| A. | Caterpillars |
| B. | Grubs |
| C. | Maggots |
| D. | Naids |
| Answer» C. Maggots | |
| 13802. |
In insects, respiratory gas exchange occurs through [Haryana PMT 2002] |
| A. | Gills |
| B. | Tracheae |
| C. | Skin |
| D. | Lungs |
| Answer» C. Skin | |
| 13803. |
Organ of mastication in cockroach is [CPMT 2002] |
| A. | Labrum |
| B. | Labium |
| C. | Mandibles |
| D. | Maxilla |
| Answer» D. Maxilla | |
| 13804. |
Crustacean fishery involves [MH CET 2002] |
| A. | Lobster and Prawn |
| B. | Shells of Cuttle fish |
| C. | Mussels and Squids |
| D. | Oysters and Crab |
| Answer» B. Shells of Cuttle fish | |
| 13805. |
Which one of the following sets of animals shows a close taxonomic relationship [MP PMT 2001] |
| A. | Jelly fish, Cuttle fish, Cat fish |
| B. | Honey bee, Crayfish, Spider |
| C. | Alligator, Nautilus, Turtle |
| D. | Kangaroo, Octopus, Salamander |
| Answer» C. Alligator, Nautilus, Turtle | |
| 13806. |
Which is not economically useful [Haryana PMT 2001] |
| A. | Apis dorsata |
| B. | Lac insect |
| C. | Bombyx mori |
| D. | Lepisma |
| Answer» E. | |
| 13807. |
Corpora allata are removed from a nymph. It will [RPMT 1998] |
| A. | Remain nymph for life |
| B. | Become adult |
| C. | Change to next nymph immediately but will remain in that state |
| D. | Die after some time |
| Answer» C. Change to next nymph immediately but will remain in that state | |
| 13808. |
Number of fertilized eggs in ootheca of Cockroach is [BHU 1999; Kerala 2000; Manipal 2001] |
| A. | 16 pairs in two rows |
| B. | 16 in two rows |
| C. | 10 in one rows |
| D. | 8 in two rows |
| Answer» C. 10 in one rows | |
| 13809. |
Which one possess larval stages [DPMT 1996] |
| A. | Cockroach and Housefly |
| B. | Housefly and Butterfly |
| C. | Cockroach and Honey Bee |
| D. | Grasshopper and Dragonfly |
| Answer» C. Cockroach and Honey Bee | |
| 13810. |
Animals with metameric segmentation, bilateral symmetry and closed circulatory system belong to phylum [AMU 2001] |
| A. | Annelida |
| B. | Echinodermata |
| C. | Arthropoda |
| D. | Mollusca |
| Answer» B. Echinodermata | |
| 13811. |
Number of lateral hearts in Pheretima are [RPMT 2000] |
| A. | 8 |
| B. | 12 |
| C. | 16 |
| D. | 4 |
| Answer» B. 12 | |
| 13812. |
Which of the following belongs to the phylum annelida [CPMT 1982; Orissa JEE 1997] |
| A. | Octopus |
| B. | Ant |
| C. | Nereis |
| D. | Crab |
| Answer» D. Crab | |
| 13813. |
In Earthworm, dorsal blood vessel is collecting channel [AMU 2000] |
| A. | Behind 13th segment |
| B. | Anterior 13 segment |
| C. | Throughout |
| D. | In typhlosolar region |
| Answer» B. Anterior 13 segment | |
| 13814. |
Chromophil cells present on pharynx of Earthworm take part in secretion of [RPMT 1996] |
| A. | Mucus |
| B. | Lipases |
| C. | Carbohydrases |
| D. | All the above |
| Answer» B. Lipases | |
| 13815. |
Name the animal having both setae and nephridia [DPMT 1996] |
| A. | Sea Urchin |
| B. | Sea Mouse |
| C. | Sea Anemone |
| D. | Sea Pen |
| Answer» C. Sea Anemone | |
| 13816. |
Excertory organs of Earthworm are [RPMT 1995; Manipal 1995, 99] |
| A. | Coelom |
| B. | Flame cells |
| C. | Nephridia |
| D. | Gizzard |
| Answer» D. Gizzard | |
| 13817. |
Specialised respiratory organs are absents in [CPMT 1988, 2000] |
| A. | Mosquito larva |
| B. | Tadpole |
| C. | Cockroach |
| D. | Earthworm |
| Answer» E. | |
| 13818. |
Earthworm helps farmers by [CPMT 1991] |
| A. | Destroying harmful bacteria |
| B. | Destroying harmful and insects |
| C. | Making soil porous and loose |
| D. | Both (a) and (b) |
| Answer» D. Both (a) and (b) | |
| 13819. |
Copulation in Earthworm occurs during [BHU 1985] |
| A. | Night in water |
| B. | Night in rainy season |
| C. | Night in summer season |
| D. | Day in rainy season |
| Answer» C. Night in summer season | |
| 13820. |
Setae occure in earthworm in all segments except [CPMT 1992, 93; RPMT 1994] |
| A. | Clitellar region |
| B. | Anal segment |
| C. | Peristomium |
| D. | All the above |
| Answer» E. | |
| 13821. |
Schizocoelic coelom, haemoglobin dissolved in plasma and segmental nephridia are present in the animal is |
| A. | Cockroach |
| B. | Pheretima |
| C. | Ascaris |
| D. | Aurelia |
| Answer» C. Ascaris | |
| 13822. |
Which one of the following exhibits concentric "tube within tube" plan [MP PMT 1999] |
| A. | Arthropoda |
| B. | Oligochaeta |
| C. | Mollusca |
| D. | Echinodermata |
| Answer» C. Mollusca | |
| 13823. |
Blood of earthworm is [Orissa JEE 2005] |
| A. | Red in colour due to dissolved haemoglobin in corpuscles |
| B. | Red in colour due to dissolved haemoglobin in plasma |
| C. | Blue in colour due to dissolved haemoglobin in plasma |
| D. | Blue in colour due to dissolved haemoglobin in corpuscles |
| Answer» C. Blue in colour due to dissolved haemoglobin in plasma | |
| 13824. |
Pharyngeal nephridia of Earthworn Pheretima occur in segments [CMC 2002] |
| A. | 3, 4 and 5 |
| B. | 4, 5 and 6 |
| C. | 5, 6 and 7 |
| D. | 6, 7 and 8 |
| Answer» C. 5, 6 and 7 | |
| 13825. |
A definite number of body segments is found in [DPMT 1982] |
| A. | Leech |
| B. | Earthworm |
| C. | Tapeworm |
| D. | Slug |
| Answer» B. Earthworm | |
| 13826. |
Metamerically segmented body is present in |
| A. | Earthworm |
| B. | Leech |
| C. | Nereis |
| D. | All of the above |
| Answer» E. | |
| 13827. |
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 | |
| 13828. |
Ancestral amphibians were tetrapods that evolved during [BHU 2002] |
| A. | Ordovician |
| B. | Silurian |
| C. | Devonian |
| D. | Carboniferous |
| Answer» D. Carboniferous | |
| 13829. |
Deuterostomes are [Kerala PMT 2000] |
| A. | Platyhelminthes |
| B. | Echinodermata |
| C. | Arthropoda |
| D. | Annelida |
| Answer» C. Arthropoda | |
| 13830. |
An animal with metameric segmentation/metamerism is |
| A. | Housefly |
| B. | Earth worm |
| C. | Roundworm |
| D. | Planaria |
| Answer» C. Roundworm | |
| 13831. |
Rabbit belongs to the order [CBSE PMT 1991] |
| A. | Rodentia |
| B. | Lagomorpha |
| C. | Artiodactyla |
| D. | Perissodactyla |
| Answer» C. Artiodactyla | |
| 13832. |
Part of Gynoecium which receives the pollen is called [MP PMT 2004] |
| A. | Stigma |
| B. | Style |
| C. | Ovary |
| D. | Ovule |
| Answer» B. Style | |
| 13833. |
Zig-Zag development of inflorescence axis is an example of |
| A. | Helicoid cyme |
| B. | Verticillaster |
| C. | Scorpiod cyme |
| D. | Umbel |
| Answer» D. Umbel | |
| 13834. |
Which one of the following is the precise site of embryo implantation in a normal pregnancy? |
| A. | Endometrium |
| B. | Vagina |
| C. | Oviduct |
| D. | Cervix |
| Answer» B. Vagina | |
| 13835. |
Menstruation results in the discharge of: |
| A. | The corpus luteum of the uterus. |
| B. | Surface cells from the vagina. |
| C. | Blood from the outer surface of the uterus. |
| D. | The endometrial lining. |
| Answer» E. | |
| 13836. |
Which of the following statements about the mammalian blastocyst is not true? |
| A. | The trophoblast gives rise to the embryo proper. |
| B. | Maternal genes are expressed during cleavage. |
| C. | The blastocyst implants in the mother's uterus. |
| D. | Early mammalian development is slow. |
| Answer» B. Maternal genes are expressed during cleavage. | |
| 13837. |
Which of the following organ is differentiated, first during development? |
| A. | Heart |
| B. | Skin |
| C. | Brain |
| D. | Neural tube |
| Answer» D. Neural tube | |
| 13838. |
An important factor contributing to the onset and maintenance of labour contractions is: |
| A. | Increased contractility of the uterine muscles from increased oxytocin levels. |
| B. | Mechanical pressure on the cervix generated by the emerging baby's head. |
| C. | Stretching of the uterus during the final stages of foetal growth. |
| D. | All of the above |
| Answer» E. | |
| 13839. |
When a bird lays a fertilised egg, the embryo is : in: |
| A. | Zygote stage |
| B. | Blastula stage |
| C. | Early gastrula stage |
| D. | Complete gastrula stage |
| Answer» D. Complete gastrula stage | |
| 13840. |
Which of the following is required for the increased production of oestrogen, progesterone, cortisol, prolactin and thyroxine etc. in the maternal blood? (i) Metabolic changes in the mother. (ii) Maintenance of pregnancy. (iii) Supporting the foetal growth. (iv) Destruction of Graafian follicle. |
| A. | (iii) and (iv) |
| B. | (i), (iv) and (v) |
| C. | (i), (ii) and (iii) |
| D. | All the four statements |
| Answer» D. All the four statements | |
| 13841. |
Which of the following statement regarding human development is correct? |
| A. | Ovulation occurs at primary oocyte stage. |
| B. | Chorion develops from inner cell mass. |
| C. | Embryonic disc develops from trophoblast. |
| D. | Primitive streak is formed in the post part of the embryonic shield. |
| Answer» E. | |
| 13842. |
A couple have been trying to conceive a child for over a year without success. Recently, the man's doctor informed him that his seminal vesicles are defective. This means |
| A. | The man makes functional sperm but they are not delivered because he is unable to ejaculate. |
| B. | The man's sperm lack functional flagella |
| C. | The fluid needed to lubricate the man's urethra for easier sperm travel is defective. |
| D. | The man's semen lacks the fructose fuel needed for the sperm to swim. |
| Answer» E. | |
| 13843. |
In males, testes are contained in the scrotal sacs because: |
| A. | Other organs do not make space for the testes in the abdominal cavity. |
| B. | Testes in the abdomen will hamper maturation of sperms. |
| C. | It provides temperature that is slightly lower than body temperature required for formation of functional sperms. |
| D. | It facilitates ejaculation. |
| Answer» D. It facilitates ejaculation. | |
| 13844. |
The human embryo, with 8 to 16 blastomere is called: |
| A. | Morula |
| B. | Blastula |
| C. | Gastrula |
| D. | Foetus |
| Answer» B. Blastula | |
| 13845. |
Which gland releases a small amount of fluid just prior to ejaculation to decrease acidity in the urethra caused by urine? |
| A. | Prostate |
| B. | Glans penis |
| C. | Seminal vesicle |
| D. | Bulbourethral gland |
| Answer» E. | |
| 13846. |
Which of the following is the first change that occurs to the zygote after fertilisation? |
| A. | It divides to form a hollow ball of cells, called the blastocyst. |
| B. | It begins to secrete the hormones. |
| C. | It contacts the endometrial wall of the uterus and becomes buried inside it. |
| D. | It initiates the formation of a placenta. |
| Answer» B. It begins to secrete the hormones. | |
| 13847. |
Identical twins result when: |
| A. | The zygote divides and the daughter cells split and develop independently. |
| B. | Two eggs with identical genetic material are fertilised, each by a different sperm. |
| C. | An embryo splits before cellular differentiation has occurred. |
| D. | Both [a] and [c] |
| Answer» E. | |
| 13848. |
A sac shaped like an upside down pear with a thick lining and muscles in the pelvic area where a fertilised egg or zygote comes to grow into a baby is called ____. |
| A. | Oviduct |
| B. | Uterus |
| C. | Vagina |
| D. | Vulva |
| Answer» C. Vagina | |
| 13849. |
Cleavage in the fertilised egg of humans: |
| A. | Starts in uterus |
| B. | Is meroblastic |
| C. | Starts when egg is in fallopian tube |
| D. | Is discoidal |
| Answer» D. Is discoidal | |
| 13850. |
The head of mature mammalian sperm is made of: |
| A. | An acrosome |
| B. | Elongated nucleus covered by acrosome |
| C. | Two centrioles and an axial filament |
| D. | Nucleus, acrosome, cytoplasm and Mitochondrial sheath |
| Answer» C. Two centrioles and an axial filament | |