Which blood type could be given as a transfusion for patient with ab blood when the rh factor is unknown?
a. o+
b. a+
c. ab+
d. ab–

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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