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Spider monkeys form loose groups of ………animals.
a) 3-5                          
b) 5-10
c) 10-15                                  
d) 15-25

d

Explanation they break up into small groups of 2 to 8 animals that travel together and feed throughout the day.



When two different troops of spider monkeys come together,…in each troop display agnostic and territorial behavior.
a) the males               
b) the females
c) the young               
d) all of these

a

Explanation these territorial behaviors are calling and barking



In which of the following behavior certain organisms expend time and energy in caring for other members of the species?
a) hostile behavior      
b) aggression behavior
c) territorial behavior 
d) altruistic behavior

b

In which of the following social behavior, one organism puts itself either at risk or personal disadvantage for the good of other members of the species?
a) hostile behavior      
b) aggression behavior
c) territorial behavior 
d) altruistic behavior

b

For how many years, female baboon protects and cares for its offspring?
a) 2 years                    
b) 3 months
c) 6 years                   
d) 6 months

c



Which of the following organisms show altruism for members of other species?
a) birds                                   
b) monkeys
c) lions                        
d) both a and b

d

Explanation such altruism is called reciprocal altruism



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