Based on your understanding of the periodic table, which list contains only nonmetals?
a) f, cl, i, s
b) al, si, p, s
c) na, cl, s, si
d) he, h, as, sb

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

What are the proteins in connectivity tissues of your foot examples of?

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.