Answer:
B. Some soil is present at the start.
Explanation:
The increase in fossil fuel consumption and the increase in carbon content on flora is directly proportional to each other.
<h3>Explanation:</h3>
The carbon is the main component of the fossil fuels. The fossil fuels are composed of different length of hydrocarbon chains which are burnt to produce energy that helps in different day to day works.
Now with the industrial revolution and the increase in modern science, the consumption of fossil fuels have increased significantly. This leads to more emission of carbon dioxide in the atmosphere which leads to the increased absorption of carbon dioxide from atmosphere. This leads to increased carbon content in plants.
If this continues, there will be a significant change in metabolic rate in the plants in the next 20 years where they will learn and adapt themselves with the environment with high levels of carbon dioxide. This will again establish the lost balance between the earth and her flora.
If AMOC and the Gulf Stream do become weaker, the probability is that Northwest Europe is going to get cooler, or not warm as much as it otherwise would under global anthropogenic climate change. And if sea level is a little bit higher, maybe because of the Gulf Stream weakening, it only makes matters worse.
Answer:
Parental cross: Bb x Bb
F1:
- Expected phenotypic ratio: 3/4 black fur (B_); 1/4 white fur (bb) >> 3:1
- Expected genotypic ratio: 1/4 BB; 1/2 Bb; 1/4 bb >> 1:2:1
Explanation:
A gene variant or 'allele' is dominant when it completely masks the presence of the other allele called recessive in individuals that are heterozygous for that gene. In this case, the allele 'B' associated with the black fur phenotype exhibits complete dominance on the allele 'b' associated with the white fur phenotype. In consequence, the mating between two heterozygous (Bb) parents will produce an F1 generation with an expected phenotypic ratio for the fur trait of 3:1, i.e., 3 black fur individuals (B_ genotype) and 1 white fur individual (bb genotype), and an expected genotypic ratio of 1:2:1 among BB, Bb and bb genotypes.