Ever since ancient times the regular occurrence of population cycles in the birds and mammals of the temperate, boreal and arctic zones of the Northern Hemisphere has attracted attention. The further north we proceed the more pronounced do such cycles become....
A. It eats only one kind of food B. It will carry extra food to its den in the winter C. It eats the leftovers of other animals in winter D. It is difficult to hunt lemmings as food. 30. What can NOT be inferred from the text? A. The arctic fox may starve in the winter ...
Deltaproteobacteria is a large class ofGram-negative bacteriawithin thePhylum Proteobacteria. It consists of ecologically and metabolically diverse members that exist as sulfate/sulfur-reducing bacteria or as intracellular pathogens. Some of the species, especially those of the families Geobacteraceae and ...
Our global food system sustains the lives of many, but paradoxically, unhealthy diets are the leading cause of poor health [1] and death worldwide [1,2,3]. Suboptimal diets are contributing significantly to the global burden of obesity, diet-related non-communicable diseases including type 2 d...
The Arctic habitat is a desolate area north of the Arctic Circle covered in permafrost that nevertheless is home to a handful of animal species and an astounding 1,700 types of plants. Discover more facts about the Arctic habitat, and learn about the adaptations animals and plants must make ...
Answer to: Describe one animal in each of the five major types of biomes. Name two characteristics of these animals that show they are adapted to...
Explore the phylum Chordata. Understand what Chordates are, and see the classification and features of chordates. Discover Chordata habitats and...
Global food systems are essential to sustain life; however, unhealthy diets are the leading cause of poor health and death worldwide. Natural food environments are a critical source of healthful food such as fresh fruit and vegetables, lean meat and aquatic foods, particularly in low- and middle...
Mules are known to have been used as carriage and riding animals in Mesopotamia and Anatolia as early as the beginning of the second millennium BC but may have been first bred in Anatolia in the Third Century BC. They have thus contributed to Turkey's cultural, social and economic heritage ...
This breed of jellyfish is a "true jellyfish" with over 1200 hair-like tentacles making up a 'mane' that hangs from its dark yellow or red bell. Lion's mane jellyfish reside in the Arctic, Northern Pacific, and Atlantic oceans' cool oceans. While the lion's man jellyfish delivers ...