In human development, an embryo is most sensitive to chemicals, radiation, or pathogens at first trimester, because this is when

frequency is the answer

the answer for this worksheet are the following:

1.            u

2.            e

3.            i

4.            o

5.            e

6.            h

7.            l

8.            e

9.            s

10.    y

11.    d

12.    e

13.    v

14.    r

15.    f

16.    r

17.    l

18.    c

then the given to crack is 6 12 3 9 15 1 17 7 10 14 8 18 4 13 2 16 5 11

the answer is he is fully recovered