Q: What process that begins in utero during fetal development and continues on into adolescence involves closing of the skull? Choices: - incubation - elongation - calcification - ossification A:
ossification

Q: What are the two possible reduction products for brf3? Choices: - brg and brf - brf2 and brf4 - brf and brf4 - brf and br2 A:
brf and br2

Q: Q: The two complementary strands of what are separated, much like unzipping a zipper, in the initiation phase? Choices: - mRNA - Chromosomes - RNA - dna A:
A: dna

Question: Q: In an electromagnetic wave, what do the crests and troughs represent? Choices: - vibrating fields - ocean waves - particles fields - oscillating fields A:
Answer: oscillating fields

*Question*
Q: What is it called when crystals form from magma? Choices: - sedimentation - transpiration - vulcanism - crystallization A:
**Answer**
crystallization

(Q).
Q: What is the total number of codons? Choices: - 45 - 51 - 68 - 64 A:
(A).
64