*Question*
Q: When light passes from one medium to another, it changes what? Choices: - color - temperature - density - speed A:
**Answer**
speed

*Question*
Q: In prokaryotes, what is composed of a single, double-stranded dna molecule in the form of a loop or circle? Choices: - allele - rNA - chromosomes - genome A:
**Answer**
genome

*Question*
Q: What is the name of the small bumps that contain taste buds and covers the tongue? Choices: - lingual tonsils - palatine tonsils - cuticle - papillae A:
**Answer**
papillae

*Question*
Q: What are structures that have a common function and suggest common ancestry? Choices: - reversible structures - analogous structures - monogamous structures - homologous structures A:
**Answer**
homologous structures