The alternating current is able to convert voltage levels with a single component (a transformer), which is why the alternating current was chosen as the primary means to transmit electricity over long distances.
Answer:
spiders
Explanation:
While humans and many other species have red blood, due to the iron in their hemoglobin, other animals have different colored blood. Spiders(as well as horseshoe crabs and certain other arthropods) have blue blood due to the presence of copper-based hemocyanin in their blood. Some animals, such as the sea cucumbers, even have yellow blood.
Answer:
Poultry farming is the form of animal husbandry which raises domesticated birds such as chickens, ducks, turkeys and geese to produce meat or eggs for food. It has originated from the agricultural era. Poultry – mostly chickens – are farmed in great numbers.
Answer:
The thoracic and sacral curvatures of the vertebral column are <u>convex</u> while the cervical and lumbar curvatures are <u>concave.</u>
The three evidences that Murchison cites to prove that Jonas’s tumor did not arise from the cells of his own body are DNA sequencing, the DNA of cancer cells from all numerous Tasmanian devils were the same, the cancer spread through bite of the devil.
Explanation:
Elizabeth Murchison, an Oncology geneticist, conducted various researches to study about the spread of contagious cancer among Tasmanian devils.
Murchison conducted research on various devils like Jonas, Kimbo and studied how the cancer spread and invaded the devils.
The first thing that Murchison discovered was that the DNA sequence of the tumor cells was different from that of his own cells in his body. Further genetic profiling proved that the tumor cell sequence was similar to some other Tasmanian female devil, while the Jonas devil was a male.
The next thing she found was that all the cancer cells sampled from numerous Tasmanian devils were sharing the same DNA, which meant that it was spreading among the population of devils.
Since the Tasmanian devils are ferocious and bites each other, cancer must have spread through the saliva of each animal
Thus, Tasmanian devil cancer is a unique type of cancer that does not rise from one’s own cell but by spreading among its own population.
