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Instructions Timed Test This test has a time limit of 45 minutes.This test will save and submit automatically when the time expires. atch Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts This test allows 2 attempts. This is attempt number 1. Board Force Completion Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit. This test does not allow backtracking. Changes to the answer after submission are prohibited. source Guide Your answers are saved automatically. esources Remaining Time: 33 minutes, 23 seconds. rd and Tech Help Question Completion Status: A Moving to the next question prevents changes to this answer. Question 19 of 32 Question 19 1 points Save Answer The Clonal Selection Theory says that early undifferentiated monocytes in the embryo and fetus undergo a continuous series of divisions and genetic changes that generate hundreds of millions of different cell types, each carrying a particular receptor specificity. O True False Moving to the next question prevents changes to this answer. Question 19 of 32 > USD/CNY 9:49 11/13/2 -0.27% Q Search F2 ad+ F3 X FA F5 FB F10 mil F12 Prise Delete & Backspace Lock D Home S Enter Shift CEFT