Question

56. Mercury thermometer is used to measure exact
a) time b) length c) temperature d) pressure
57. The most common used instrument to measure lengths in laboratory is a
a) meter ruler b) half meter ruler
c) both a and b d) none
58. Types of balance includes
a) beam balance b) electronic balance
c) both a and b d) natural balance

59. Volume of seashells, pebbles and keys can be measured by
a) measuring cylinder b) displacement method c) Vernier calliper d) measuring flask
60. In old days the methods of measuring were
a) inaccurate b) correct c) accurate d) perfect
61. In our everyday life activities, we need
a) estimation b) accurate measurements
c) both a and b d) appearances
62. Identify the aquatic animal with scaly skin which breathe with gills-
a) Rohu b) Tortoise
c) Sparrow d) Rat
63.The unicellular organism causing malaria-
a) Amoeba b) Paramecium
c) Euglena d) Plasmodium
64. Identify the animal which is not an Arthropoda-
a) Prawn b) Butterfly
c) Earthworm d) Spider
65. Scientist who introduced binomial nomenclature is-
a) Charles Darwin b) Carolus Linnaeus
c) Robert Hooke d) Gregor Mendel
66. All living things are made up of __________
a) matter b) cell
c) organs d) none
67. The group of cells performs a specific function is called
a) cell b) tissue
c) organ d) organ system
68. The invertebrate do not have
a) backbone b) exoskeleton
c) joint legs d) scales
69. _________ are animals with porous body
a) protozoa b) porifera
c) coelenterate d) Annelida
70. Animals with hollow tube like body
a) platy helminthes b) coelenterata
c) porifera d) protozoa​

Answer 1

Answer:

56 . temperature

57. both a and B

58. natural balance