Nitrogen-14 has a mass number of 14 which means that it has a total of 14 protons and neutrons. When you subtract the atomic number of nitrogen from the mass number of 14 you get the number of neutrons (14-7), which gives you 7 neutrons. Now for nitrogen-15, you have a different mass number which means there is a different amount of neutrons (15-7), 8 neutrons. So the difference is the mass numbers and the number of neutrons (the number of protons remains the same however). When there are two versions of the same element, and they have the same number of protons, but different number of neutrons and different mass numbers, they are called isotopes. Hope this helped :)
Answer:
C. altering blood volume
Explanation:
Systemic blood pressure has a number of controls, both nervous and hormonal in nature. Nerve control is said to be short term and is basically done by the sympathetic and parasympathetic autonomic nervous system which, as a balance, seeks to balance systemic blood pressure to values considered stable.
This type of control works through chemoreceptors, reflex arcs associated with vasomotor fibers, and reflex arcs involving baroreceptors. The goal of short-term pressure control is to maintain balance.
Answer:
0%
Explanation:
A bird with blue-tipped feathers (genotype Bb), when crossed with a white bird (genotype bb) can produce offspring with genotypes according to the following Punnett square:
![\begin{array}{ccc}\ \ \ &\ B&b\\\end{array}\\\begin{array}{c}b\\b\\\end{array}\left[\begin{array}{cc}bB&bb\\Bb&bb\\\end{array}\right]](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bccc%7D%5C%20%5C%20%5C%20%26%5C%20B%26b%5C%5C%5Cend%7Barray%7D%5C%5C%5Cbegin%7Barray%7D%7Bc%7Db%5C%5Cb%5C%5C%5Cend%7Barray%7D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7DbB%26bb%5C%5CBb%26bb%5C%5C%5Cend%7Barray%7D%5Cright%5D)
In other to have entirely blue feathers, an offspring would have to have the BB genotype. Since it is not possible to obtain this genotype by crossing the birds in question, the percent chance that an offspring will have entirely blue feathers is 0%.
Answer:
Your right to criticize the president
Homeostasis- <span>The balance of all systems of the body. It is also known as homeostatic balance.</span>
Responsiveness- Mental Status.
Correct me if I'm wrong on any of these, please. Trying to remember from EMT Websites and my textbooks.
