It is the endocrine and the excretory systems that are known to provide the help needed to regulate body temperature. There are different glands that make up the endocrine system like the pancreas, the thyroid, and the gonads. All of these glands are responsible for regulating people’s body temperature.
C. Thick fur so that they can be protected from the harsh climate and winds.
Hope this helps.
Answer:
There is some debate about the definition of a species, especially across fields. However, what it likely being discussed here is the biological species concept which states that:
An organism is considered a new species when there is reproductive isolation from the population that they originated from. In other words, for two organisms to be the same species they must be able to reproduce to create viable (able to survive) and fertile (able to reproduce) offspring.
Reproductive isolation can occur by different means, classified as being prezygotic or postzygotic isolation. These include things like mechanical, behavioral, temporal, ecological, and geographical isolation for prezygotic isolation. And things like hybrid infertility and hybrid inviability for postzygotic isolation. These are not relevant to the question but they give you an idea of what you could look up if you wanted more information.
It has been proven that the caloric equivalent of one pound of body fat is 3500 calories approximately. One pound is equal to 454 grams and one gram of pure body fat contains 8.7 to 9.5 calories. Considering the fact that body fat tissue is 87% pure fat, we can calculate that one pound of body fat contains approximately 3.436 to 3.752 calories.
