41. Who was a well-known eye specialist name is the following?
(a) Bu Ali sina
(b) Ali Bin Isa
(b) Al-Farabi
(d) Abdul Malik
42. Who described the “circulation of blood” in human body?
(a) Bu Ali sina
(b) Ali Bin Isa
(b) Al-Farabi
(d) Ibn-ul-Nafees
43. The bodies of, organisms are made of, elements?
(a) 16
(b) 15
(c) 17
(d) 18
44. The basic structural, and functional unit of an, organism?
(a) Cell
(b) Organelles
(c) Molecules
(d) Tissue
45. In multicellular organisms, groupings of cells with similar structural characteristics and comparable functions are called?
(a) Cell
(b) Tissues
(c) Organism
(d) Organ
46. Different tissues work, together to perform a specific activity, such a group of related tissues is called?
(a) Cell
(b) Tissues
(c) Organism
(d) Organ
47. The group of similar individuals in an area is called?
(a) Community
(b) Society
(c) Population
(d) Culture
48. When two or more populations of different organisms living together make a?
a) Community
(b) Society
(c) Population
(d) Culture
49. What does an area’s community and non-living elements make?
(a) Community
(b) Society
(c) Population
(d) Ecosystem
50. What is the name of the entire earth’s ecology as a whole?
(a) Ecosystem
(b) Biosphere
(c) Population
(d) Society
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