I found the rest of the exercise on the internet and these are the options.
"-Undifferentiated vertebrae throughout the body.
-One neck vertebra allowing up and down movement.
-Many neck vertebrae that allow for greater mobility.
<span>-Two neck vertebrae allowing up and down and sideways movement."
The correct answer would be the third. - "</span>Many neck vertebrae that allow for greater mobility." The <span>present-day organism with four limbs has a neck with several vertebrae that allow movements of rotation (mostly because of only two vertebrae at the top of the neck), and side way movements, as well as back and forth movements.</span>
Answer: 190.9K
Explanation:
5.6(14) = 5(.0821)T or (5.6*14)/(5(.0821))
78.4 = 0.4105T
190.9K = T
Answer:
Natural resources are the resources that are available in the nature. There is no human involvement in the production or manufacture of the natural resources. These resources helps in adding capital and growth to the development of the country. Natural resources are found in abundance but they are non-renewable resources. This means that it takes millions of years for their formation. Once exhausted, their replacement would became very difficult. Conversation of the natural resources has been one of the global action. Developed nations are equipped to find ways by which natural resources can be saved and used in a way that they do not extinguish. Many alternative methods and techniques have been adopted to preserve them. Natural resources like oil, gold and coal are performed after going through a process of many years. Hence, there replacement becomes very challenging and difficult respectively.
Answer:
pH = 9.25
Explanation:
Reaction of ammonia (NH₃) with hydrochloric acid (HCl) is:
NH₃ + HCl → NH₄⁺ + Cl⁻
As equal volumes of a 0.020M solution of NH₃ and a 0.010M solution of react, molarity of NH₃ after reaction is 0.010M and 0.010M of NH₄⁺.
For the buffer NH₄⁺/NH₃ H-H equation to find pH of solution is:
pH = pKa + log₁₀ [NH₃] / [NH₄⁺]
pH = 9.25 + log₁₀ [0.010M] / [0.010M]
<em>pH = 9.25</em>