Subject - General Science
Chapter - The Circulatory System

1. Consider the following statements

i) Vertebrates and a few invertebrates have a closed circulatory system.

ii) Close circulatory systems have blood closed at all times within vessels.

iii) Human circulatory system is called the cardiovascular system.

which of the above statements is/are true?

a) i & ii only
b) ii & iii only
c) iii only
d) All of the above

2. Consider the following statements regarding open circulatory system :

i)  In the open circulatory system blood flows into hemocoel with blood diffusing back to the cells.

ii) Blood flow is sluggish.

iii) Insects, mollusks & other invertebrates have an open system.

which of the following is/are true ?

a) i & iii only
b) ii & iii only
c) None of the above
d) i only

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