True or False: It takes a long time for the body’s defense system to kick in after a leukocyte detects a problem.

When the body senses or finds a foreign substances (called antigens), the immune system works to recognize the antigens. so sometimes they attack instantly or it takes them some time to realize if its a virus or not.

Explanation: Hope this helps {>^o^<}

ia. mver.y..sor .r..yinee..i am.ina.rush.pleas eforg.ive   meiknowiama. nas.s holei apalo.gize

answer; the above statement is (true);