Two major branches of Biology are :
(a) botany and zoology (b) microbiology and hydrobiology
(c) all of the above (d) none of the above
(a) botany and zoology
Zoology is a branch of Biology dealing with the study of :
(a) plants only (b) Animals only
(c) Plants and Animals (d) None of the above.
(b) Animals only
The study of both plants and animals is called
(a) Biology (b) Botany (c) Zoology (d) Applied Biology.
(a) Biology
Which of the following best defines the term “growth” in biology?
(a) Decrease in number of organisms (b) Increase in number of organisms
(c) Increase in size of an organism (d) Increase in plants and animal.
(c) Increase in size of an organism
Spermatogenesis refers to the process which: (a) Ova are produced in the
female body of an animal (b) Sperms are produced in the male body of an
animal (c) Animals give birth to the young ones (d) Plants grow
(b) Sperms are produced in the male body of an animal
The process by which female sex cells are produced is called
(a) Cogenesis (b)Gametogenesis (c) All of the above (d) None of the above
(b) Gametogenesis
Which of the following is a waste product of respiration?
(a) Energy (b) Oxygen
(c) Carbon dioxide (d) Glucose
(c) Carbon dioxide
Which of the following is not a heterotrophic mode of nutrition?
(a) Photosynthesis (b) Holozoic (c) Saprophytism (d) Parasitism
(a) Photosynthesis
Which of the following is not an organ of excretion?
(a) Lungs (b) Nose (c) Bladder (d) Kidney
(a) Lungs
Growth hormones in plants are collectively called
(a) Testosterones (b)Progesterone (c) Toxins (d) Auxins
(d) Auxins
Which of the following is not a sense organ in animals?
(a) Liver (b) Ear (c)Tongue (d) Skin
(a) Liver
Which of the following is not a Micro organism?
(a) Bacteria (b) Viruses
(c) Protozoa (d) Nematode
Which of the following is an organ of reproduction in plants? (a) Stem (b)
Flower (c) Branch (d) Leaves
(b) Flower
Which of the following is an example of asexual reproduction? (a) Conjugation
(b) Budding (c) Fertilization (d) Zygote formation
(b) Budding
The process of gametogenesis results in the production of (a) Sperms and Ova
(b) Animals (c) Zygote (d) Embryo
(a) Sperms and Ova
The process by which green plants manufacture their food is called? (a)
Respiration (b) Reproduction (c) Photosynthesis (d) All of the above
(c) Photosynthesis
Based on the possession of a backbone, animals are classified into :
(a) Long and Short (b) Vertebrates and Invertebrates
(c) Flowering and Nonflowering (d) None of the above
(b) Vertebrates and Invertebrates
Depending on the number of cells making up an individual, plants and animals
are divided into: (a) Unicellular and Multicellular (b) Multicellular and
unicellular (c) All of the above (d) None of the above
(a) Unicellular and Multicellular
Microscopy revealed the previously unknown world of living things, thus
laying the ground work for: (a) Cell theory (b) Cell hypothesis (c) Organization
of living things (d) Organization of life
(d) Organization of life
The term ‘Biology’ in its modern sense appears to have been introduced
independently by (a) Thomas Beddoes in 1799 (b) Karl Fredric in 1800 (c)
Gottfried Reinhold Ttreviranus in 1802 (d) All of the above
(d) All of the above
The following are fundamental forces except: (a) Magnetic force (b)
Electromagnetic force (c) Gravitational force (d) Weak force (e) Strong force
(a) Magnetic force
All the fundamental forces of nature are both attractive and repulsive except:
(A) Strong force (B) Electromagnetic force (C) Weak force (D) Gravitational
force (E) Electric force
(C) Weak force
Which of the following fundamental forces is strongest? (A) Electrostatic force
(B) Electromagnetic force (C) Gravitational force (D) Weak force (E) Strong
force
(E) Strong force
Which of the weakest of all the fundamental forces of nature (A) Nuclear force
(B) Electromagnetic force (C) Gravitational force (D) Weak force (E) None
of the above
(C) Gravitational force
The magnitude of the gravitational force between two objects of mass m1 and
m2 separated by a distance r is given by Fg = G(𝑚1 ×𝑚2)/𝑟2
. The constant G is called
(A) Universal Gravitational Constant (B) magnetic constant (C) electrical
constant (D) nuclear constant (E) None of the above
(A) Universal Gravitational Constant
Gravitational force is (A) Always attractive (B) Always repulsive (C) Both
attractive and repulsive (D) Neither attractive nor repulsive (E) None of the
above
(A) Always attractive
The Earth and other planets are held in their orbits as they revolve round the
sun by: (A) Strong force (B) Electromagnetic force (C) Weak force (D)
Molecular force (E) Gravitational force
(E) Gravitational force
The Earth completes a revolution round the sun in a period of (A) 24 hours
(B) 1 month (C) 1 week (D) 365 days 6 hours (E) 27 days 8 hours
(D) 365 days 6 hours
The Earth as well rotates or spins about an axis through its poles as it revolves
round the Sun. The time taken by the Earth to complete a rotation about its axis
is
(A) 24 hours (B) 1 month (C) 1 week (D) 365 days 6 hours (E) 27 days 8
hours
(A) 24 hours
The moon is held and kept in orbit as it revolves round the Earth by :
(A) Strong force (B) Electromagnetic force (C) Weak force (D) Molecular force (E) Gravitational force
(E) Gravitational force
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