The speed of sound is greater in hot air than it is in cold air. This is because the molecules of air are moving faster and the vibrations of the sound wave can therefore be transmitted faster. This means that when sound travels from hot air to cold air or from cold air to hot air it will refract.
The centrioles and spindle fibers attach to the chromosomes and help guide them during cell division.
Answer:
Option (c).
Explanation:
Transcription may be defined as the process of formation of RNA molecule from the template DNA with the help of enzymes and transcription factors. The transcription occurs in 5' to 3' direction.
Post trancriptional modification occurs in the RNA molecule that plays an important role in transcription as well as translation. The introns are removed from the RNA transcript and exons joined together is known as splicing. The alternative splicing occurs in which different protein isoforms are formed by the single exons.
Thus, the correct answer is option (c).
<span>Boneless chicken wings are what they are, while tenders are scraps stuck together.</span>
Theories may change over time. Unversal laws are supposed to not change.
Most theories and laws cannot not be definetly proved and they are constantly tested.
Consensus is not necessary. Many theories were discarded by the majority of scientific community before been accepted.
Both theories and laws must be based on scientific method and observations are a key part of it. Then, in my opinion, the true statement is that both are supported by observartios.