🔬 General Science Solved MCQs with Answers

Practice 4010 approved 🔬 General Science questions with verified answers from the 🌐 Current Affairs & GK subject for Pakistan exams.

4010 solved MCQs

The mutations significant for evolution are _____?Answer: Heritablegermline mutations The protein that accumulates in claws, horse hooves, and nails is _____?Answer: Keratin An important component of Darwin's theory is that ______?Answer: Inherited variations arise by mutations The primary excretory product of aquatic gastropods is _____?Answer: Ammonia Birds are thought to have descended from the ancient reptiles known as _____?Answer: Archosaurs The ______ of most birds have a large radial keel for attachment of flight muscles.Answer: Sternum Regions with the greatest number of sensory receptors are the tongue and _____?Answer: Finger tips The ability of the body to resist foreign bodies and their toxins is called _____?Answer: Immunity Excretion in Enteropneusts may involve a series of blood tissues called the ______?Answer: Glomerulus The major nitrogenous waste excreted by insects is ______?Answer: Uric acid Cleavages that occur around the top of the yolk, instead of dividing the whole egg, are said to be _____?Answer: Meroblastic In the inner ear of fishes, the ______ detects rotational movements.Answer: Semicircular canal Most terrestrial crustacean belongs to the order ______?Answer: Isopoda Metamorphosis in insects includes the stages larva, pupa, and _____?Answer: Adult When solid particles are ingested by cells, the process is called ______?Answer: Phagocytosis The major nitrogenous waste of annelids is ______?Answer: Ammonia In marine ecosystems, the region that extends from the splash zone of ocean waves to low tide waves is called ____?Answer: Intertidal A physical change does not involve change in _____?Answer: Mass The second step in the origin of life must have involved the formation of polypeptides from small organic molecules by _____?Answer: Polymerization Nitrogenous wastes such as urea and creatinine are excreted by this organ in fishes?Answer: Gills Social behaviors of insects are most highly developed in members of the order ______?Answer: Hymenoptera The endoparasitic flukes belonging to the flatworms are classified as _____?Answer: Trematoda A symbiotic relationship in which one member benefits and the second member is neither helped nor harmed is called ______?Answer: Commensalism The most well-known genus of Onychophorans is ______?Answer: Peripatus The gastropod larval stage in which torsion occurs is called ______?Answer: Veliger The protective pouch that covers the mammary glands of female metatherians is the _____?Answer: Marsupium All population living in an area make up a/an _____?Answer: Community The primary germ layer that gives rise to digestive glands is ______?Answer: Endoderm The characteristic larvae of lampreys are called _____?Answer: Ammocoetes The characteristic larval stage of brittle stars is called _____?Answer: Ophiopluteus larva