41 It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect: Biology Medium Full question → A Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones B Older sediment layers have less amount of these reaioactive isotopes as that of the young ones. C Older sediment layers have greater amount of these radioactive isotopes as that of the young ones. D Older sediment layers did not have these radioactive isotopes
42 Bacteria which grow either in the presence or absence of oxygen___________? Biology Medium Full question → A Aerobic bacteria B Anaerobic bacteria C Facultative bacteria D Microaerophilic
43 ___________ is used to relieve one kind of headache, migraine? Biology Medium Full question → A Pencillin B Lovastatin C Cyclosporine D Ergotin
44 Cytoskeleton involved in assembly and disassembly of the spindle during mitosis is of_________? Biology Medium Full question → A Microtubules B Microfilaments C Intermediate filaments D None of these
45 Sythetic insulin from pork was formed by which technique__________? Biology Medium Full question → A Parasitology B Social biological techniques C Biotechnology D Both a and c
46 ___________ is concerned with cell secretions? Biology Medium Full question → A Endoplasmic reticulum B Golgi complex C Lysosomes D Cell membrane
47 Which one is not correct for a productive theory________? Biology Medium Full question → A It is predictive B It has explanatory power C It discourages suggestion of different hypotheses D None of these
48 Intake of liquid material by cell membrane is called___________? Biology Medium Full question → A Endocytosis B Exocytosis C Phagocytosis D Pinocytosis
49 Breakdown of large molecules into smaller ones utilizing water molecules is_________? Biology Medium Full question → A Hydration B Hydrolysis C Dehydration synthesis D Electrolysis
50 Out of total organisms on earth, _____________are vascular plants? Biology Medium Full question → A 53.10% B 19.90% C 17.60% D 9.40%
51 Oxygen accounts for __________ percent of totals human body mass? Biology Medium Full question → A 65% B 18% C 10% D 3%
52 A structure formed by groups of similar cells organized into loose sheetsor bundles performing similar functions is called as________? Biology Medium Full question → A An organ B An organism C A Tissue D A Cell
53 Branch of biology which deals with the study of chemical components and chemical processes in living organisms is called________________? Biology Medium Full question → A Molecular biology B Physiology C Biochemistry D Atomic biology
54 A large regional community primarily determined by climate is called__________? Biology Medium Full question → A Population B Community C Biome D Habitat
55 Out of 92 naturally occurring chemical elements how many are considered as bio-elements__________? Biology Medium Full question → A 6 B 16 C 26 D 15
56 Unbroken series of organisms arranged from ancestor to descendant sequence is____________? Biology Medium Full question → A Biodiversity B Phyletic lineage C Connecting link D Evolutionary line
57 Which one is a micromolecule__________? Biology Medium Full question → A Polysaccharide B Protein C Hemoglobin D ATP
58 Control of organisms by using living organisms is called_______? Biology Medium Full question → A Bioremediation B Integrated disease management C Antisepsis D Biological control
59 Group of living organisms of the same species living in the same place at the same time is called________? Biology Medium Full question → A Community B Population C Ecosystem D Biome
60 The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by________? Biology Medium Full question → A Environmental biologist B Paleontologist C Marine biologist D Social biologist