AB-201 Review - Limnology, Soil Invertebrates, and Mammals

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Across
  1. 3. A subclass of soil invertebrates with varying feeding strategies, such as saprophagous, predatory, and others
  2. 4. Primary producers found in the benthic layer of Arctic lakes, ponds, and streams, enabling them to better utilize nutrients at the bottom
  3. 5. Arctic lakes emit more of this chemical compound than any other natural Arctic source
  4. 10. A lake with relatively low productivity due to low nutrient content
  5. 13. A large bird of prey that is nomadic and specializes in preying on small rodents, such as lemmings
  6. 16. Dr. Christoffersen's Arctic pet
  7. 17. A large mustelid that inhabits tundra and taiga biomes in the Palearctic and Nearctic regions
  8. 18. A family of soil invertebrates, also known as pot worms, that play an integral role in cold, wet, and organic-rich ecosystems
  9. 19. A class of soil invertebrates, commonly referred to as springtails, which can also be classified based on their body shape as globular, slender, or podgy
  10. 20. An ecotype of Arctic Fox that has small litters but breeds every year
  11. 21. A group of soil invertebrates that restrict water freezing to outside the animal body entirely
Down
  1. 1. An ecotype of Arctic Fox that has large litters in lemming years and does not breed in other years
  2. 2. A natural form of asexual reproduction in which growth and development of an embryo occur directly from an egg, without fertilization. Found in rotifers, daphnia, and aphids
  3. 4. A group of mammals consisting of stoats and weasels, considered Arctic residents that specialize in hunting lemmings
  4. 6. The tendency of lakes to form separate and distinct thermal layers during warm weather
  5. 7. The largest canids found in the Canadian Arctic Archipelago, with pale or white fur adapted to the Arctic
  6. 8. A group of soil invertebrates that restrict freezing to extracellular water
  7. 9. Zooplankton that accumulate lipids for maintenance and reproductive maturation during food-depleted winter periods
  8. 11. The only freshwater fish currently found in Svalbard
  9. 12. A type of lake that only stratifies once during the year
  10. 14. A phylum of soil invertebrates, among the most diverse and abundant animals
  11. 15. A group of soil invertebrates that produce cryoprotectants or antifreeze proteins to prevent intracellular ice formation