Pulse, blood groups and functions of lymph — task. Science State Board, Class 10.

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Choose the appropriate options:

[Note: There maybe more than one right option]

1. What are the factors that affects the pulse rate of a human being?

Cycling
Age and sex
All of the above
Anger

2. Which of the following is true about Rh factor?

It was first discovered in Rhesus monkey in the year 1940
\(Rh^+\) persons do not have Rh antigen
Rh factor was discovered by Land Steiner
Formation of Rh protein is controlled by a recessive gene called R

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