Spoilage is basically a chemical reaction and chemical reactions take place more slowly if the environment is cooler. Moreover, the microbes are also not very active at lower temperatures and are unable to spoil the food.
Answer:
A) igneous rock
Explanation:
Igneous rock is formed when molten rock from underground moves to the surface.
There are three types of rock
1. Igneous rock: This is formed when molten rock (magma or lava) cools and solidifies.
2. Sedimentary rock: As the name implies, it is formed by the coming together of small particles such as gravel, sand, silt, or clay.
Metamorphic rock: This is a rock formed from existing rock. It is formed by the gradual disintegration of existing rocks caused by heat or pressure.
Answer:
The correct answer is - Yes, the genetic engineer should create a genomic library or a cDNA library.
Explanation:
mRNA isolated from the toxin extracted from the venom gland of the scorpion to create a cDNA library. The cDNA sequence is reverse transcribed by the mRNA that lacks the introns as prokaryotic organisms such as bacteria cannot splice introns.
If the engineer wants to express the toxin in bacteria then he required a cDNA sequence as a genomic clone can not use to clone for making proteins. mRNA should be isolated from the venom gland so it can synthesize cDNA library enriched with toxin protein sequence.
<span>Think of each amino acid like a different letter, there are only 26 letters but yet millions of words, it works the same sort of way. </span>
Answer:
The process of natural selection is acting on <u>Field mouse individuals</u> where as evolution is occurring on <u>Field Mouse population. </u>
Explanation:
As the problem shows, the field mice are the ones that natural selection is acting on, but only the ligher shade ones. Because the lighter shade individuals are more likely to survive in the beach because they blend with the environment.
Evolution occurred on the field mouse population because if you read the script in the end, they were able to successfully reproduce. This means that they evolved in such a way that they were able to survive in their new environment. (most likely carrying on the trait of light-colored fur)
Natural selection acts on traits, phenotypic traits, favorable to the environment. Evolution occurred because of the natural selection, because the favored trait enabled the organism to adapt to the environment.
