Q: As the atoms approach one another, their electron clouds gradually begin to do what? Choices: - magnetize - shrink - disappear - overlap A:
overlap

Q: Alchemists, as early as the eighth century, knew nitric acid as aqua fortis, which means? Choices: - isolated water - clean water - applied water - strong water A:
strong water

Q: Q: What is a region of repetitive noncoding nucleotide sequences at each end of a chromosome? Choices: - diploid - cellular - cytoskeleton - telomere A:
A: telomere

Question: Q: What do you call structures like a whale's pelvic bones, which were once attached to legs, or wings that cannot be used for flight? Choices: - primitive - primordial - distinctive - vestigial A:
Answer: vestigial

*Question*
Q: What organ contributes about 60% of the volume of semen ? Choices: - complete vesicles - cilia - long vesicles - seminal vesicles A:
**Answer**
seminal vesicles

*Question*
Q: What sciences are the study of living organisms? Choices: - physical sciences - earth sciences - social sciences - life sciences A:
**Answer**
life sciences