*Question*
Q: What do tadpoles clear out of waterways? Choices: - pollution - oxygen - disease - algae A:
**Answer**
algae

*Question*
Q: What value of dissolved substances is higher than that of their corresponding precipitate? Choices: - negentropy - binary - ordiny - entropy A:
**Answer**
entropy

*Question*
Q: Researchers have long based their hypotheses about animal phylogeny on what? Choices: - longitudinal data - manipulative data - distinctive data - morphological data A:
**Answer**
morphological data

*Question*
Q: The high points of a transverse wave are called what? Choices: - ridges - valleys - points - crests A:
**Answer**
crests