Answer:
D. Changes in the environment changed each morph's ability to evade predation in different ways.
Explanation:
The moth species<em> Biston betularia</em> has two color morphs, or variants. One has a speckled white and black color, while the other is all black. Over the period of time, the distribution of moths dramatically changed between 1900 and 1950 in such a way that black morph became dominant but speckled morphs became very much declined in abundance. The reasons behind this change was heavy industrial pollution in UK between 1900 and 1950.
When the environment became very polluted, dark and blackish, the speckled moth had more chanced of getting eaten by predators thats why they declined in number as compared to black morphs. On the other hand, backgrounds of grime and soot made black morphs less visible to the predators and they survived well. This is an excellent example of natural selection that only those specie better survive that have the ability to cope better with adverse environmental fluctuations.
Therefore, option D is best option.
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D. DNA
All organisms contain dna
Answer: heavy eroded particles settle out of moving water
Placer deposits forms when rocks weathered due to the effect of water. The heavy minerals from the rocks get settled down in water. Minerals that form placer deposits have high specific gravity, they are resistant to chemical weathering process and are durable.
The person in charge of managing the reputation of a brand is called the Reputation Manager or Brand
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Answer:
A single nucleotide changes in CCG which will result in missense mutation can be many possibilities.
Explanation:
Missense mutations
CCG codes for Proline amino acid
• Mutation in first nucleotide codes for
UCG specifically encodes Serine
ACG specifically encodes Threonine
GCG specifically encodes Alanine
Missense mutation
• Mutation in second nucleotide specify for coding
CUG specifically encodes Leucine
CAG specifically encodes Glutamine
CGG specifically encodes Arginine
• Mutation in Third Nucleotide will not result in missense mutation because any point mutation in third nucleotide of codon will encode same amino acid i.e Proline.
