Question: Q: What gems are created by mollusks, such as oysters? Choices: - crystals - turquoise - diamonds - pearls A:
Answer: pearls

Question: Q: What do scientists attach to aquatic animals to collect information? Choices: - ultraviolet tags - radio tags - fluorescent tags - satellite tags A:
Answer: satellite tags

Question: Q: The differences in the biomes is due to differences in the what factors? Choices: - biological - temperature - air quality - abiotic A:
Answer:
abiotic