Answer: Two characteristics define brightness: luminosity and magnitude. ... The size of the star and its surface temperature determine its luminosity. Apparent magnitude of a star is its perceived brightness, factoring in size and distance, while absolute magnitude is its true brightness irrespective of its distance from earth.
Explanation:
Answer:
1. they are the most complex green flowering plants
2. they are vascular plants
3. they have well developed and complete flower
4. they are mainly terrestrial plants
5. they are seed plants with seed enclosed in the fruit
Explanation:
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Irritation Threshold is defined as the name applies. It is the threshold or maximum point at which an individual has become irritated or annoyed.
Ur answer would be evolution
Water is the compound must be present along with urea for the break down of urea.Thus, option B is correct.
<h3>What does urea break down into?</h3>
Urea and water combined together and results into the production of carbon dioxide and ammonia with the help of urease enzyme.
Urea + water = Carbon dioxide+ ammonia
Breakdown of urea occurs in a cycle known as urea cycle and it has five important steps:
- Formation of carbamoyl phosphate
- Synthesis of citrulline
- Cleavage of argininosuccinate
- Glucogenic and ketogenic amino acids
- Oxidation of Carbon skeleton of amino acids
Therefore,water is the compound must be present during the process of break down of urea.Thus, option B is correct.
Learn more about break down of urea here:
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Your question is incomplete,but most probably your full question was,
What other compound must be present along with urea for the urease enzyme to break down urea?
A.ammonia
B.water
C. pyruvic acid
D. carbon dioxide
