Answer:
This question is incomplete
Explanation:
This question is incomplete. However, let's understand some terms
Activation energy is the minimum amount of energy required for a reaction to proceed. Under normal condition, when the activation energy is high, it takes longer for the reaction to proceed than when it is low.
The burning of marshmallow is an exothermic reaction as it involves the transfer of heat energy into the environment.
Answer:
Let the land lie fallow for a season
Explanation:
In Agriculture when a farmer has some problems with the quality of his soil due to continued planting all year round without allowing the soil rest, there seems to be loss of some of the nutrients that help crops grow and he is unable to grow crops on his field.
The best option is to allow the land low fallow with grasses and other plants growing and replenishing the soil.
The esophageal sphincter closes after a bolus has been swallowed and enters the stomach.
<h3>What is the esophageal sphincter?</h3>
The esophageal sphincter is a sphincter that separates the esophagus from the stomach. The muscle attached thereto pushes the bolus down the stomach.
Hence, esophageal sphincter closes after a bolus has been swallowed and enters the stomach. This sphincter is essential to prevent the contents of the stomach reentering the esophagus.
Learn more about the stomach: brainly.com/question/8836658
Answer:
Although the process of DNA testing provides promising results in the forensic department, it still has certain limitations. Some of the problems with DNA testing are:
<em>1) It takes a lot of time to process a single piece of DNA. Along with time, this process is also very expensive.</em>
<em>2) Some critics consider DNA as a violation of ethics. This is because not all of the suspects are culprits. And the blood of all of the suspects is taken to determine a single culprit. Some people consider it unethical for taking the blood of the suspects as humanism is against it.</em>
<em>3) Some countries are working on making DNA databanks, where they will be able to simply compare the sample taken from a crime scene with the DNA databank. In this way, they will easily be able to identify the culprit. This process is again considered to be unethical besides the large amount of money that will be used to create such a large databank. </em>
<em></em>
<em />
Answer:
Mutations. A mutation is a random change in DNA which therefore affects a gene and/or chromosome . ... If a mutation causes a new phenotype that makes an organisms better suited to a particular environment, it can lead to rapid change in the characteristics of the individuals in that species.
