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Anastasy [175]
3 years ago
12

Project due tomorrow, help needed ASAP!!!

Biology
1 answer:
Alex_Xolod [135]3 years ago
7 0

Answer:

Diversity

Bears are a small group of mostly large mammals, with 8 species in 5 genera (Ursus, Tremarctos, Melursus, Helarctos, and Ailuropoda). Although Ursidae is not diverse, species in this family are widespread and culturally significant to human populations throughout their range. (Flynn, et al., 2005; Nowak, 1991; Vaughan, et al., 2000)

Geographic Range

Bears are found on all continents except Antarctica and Australia, but are primarily found throughout the northern hemisphere, historically occurring as far south as the Atlas Mountains of northwestern Africa, the Andes of South America, and the Sunda shelf region. This range has been reduced in historical times as a result of human persecution and habitat destruction. For example, brown bear (Ursus arctos) populations in the Atlas Mountains are thought to be extinct and their range has been significantly altered in North America and Europe. (Nowak, 1991; Pasitchniak-Arts, 1993; Vaughan, et al., 2000)

Biogeographic Regionsnearctic  native  palearctic  native  oriental  native  neotropical  native  

Habitat

Bears occur in nearly all terrestrial habitats throughout their range, from Arctic tundra and polar ice floes to tropical and temperate forests, mountains, grasslands, and deserts. Although some bear species occur in arid areas, proximity to water is important. Bears are most abundant and diverse in temperate and boreal regions. Most species are habitat generalists, changing preferred foods, activity patterns, and denning quarters with local conditions. Ailuropoda melanoleuca, however, is found primarily in the montane bamboo forests of southern China. (Chorn and Hoffman, 1978; DeMaster and Stirling, 1981; Fitzgerald and Krausman, 2002; Lariviere, 2001; Nowak, 1991; Pasitchniak-Arts, 1993; Vaughan, et al., 2000)

Explanation:

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Answer: The correct answer is B. He could add insulation to the aquarium so that it does not exchange energy with its surroundings.    

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Isolated system is a system in which there is no exchange of energy and mass. As per the question, heat is radiated from the aquarium. In order to make it an isolated system, insulating or diathermic cover is used over it so that it does not exchange energy with its surroundings.    

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This signifies that the majority of the individuals exhibit one functioning and one silenced set of these genes. While the individuals with the syndrome exhibits a non-functioning set and a silenced set. The disease is completely autosomal, therefore, it will not predict the sex of the offspring. Also, imprinting is on maternal copy, therefore, if the affected individual is male, it will pass on the mutated copy only in 50 percent of its gametes, and a non-functioning copy to the remaining 50 percent of the gametes. Thus, all of his offspring will exhibit PWS or will get affected.

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