Answer:
A. Type of soil
Explanation:
A control experiment is the one that is used to checkmate the real experiment.
In this case, the fourth jar that contains the mixture of all the types of the soil is considered as the control experiment.
In a nutshell, it should be generally understood here that the type of soil serves as the control for the experiment.
Answer:
0
Explanation:
Let's assume that the gene coding for tongue rolling is encoded by letter T.
The allele for tongue rolling (T) is dominant over the allele for inability to roll the tongue (t).
In a cross between two homozygous dominant individuals (TT) i.e. they have the same dominant allele in their genotype and hence, they can both roll their tongues.
(See attached image)
The cross will produce four possible offsprings, in which all will possess a homozygous dominant genotype i.e. all will be phenotypically able to roll their tongues. Hence, in the case of the child, the child will be able to roll his tongue.
The probability or chance that the child will be unable to roll his tongue is 0. Since there is none.
The daughter's father would have to have been colour blind, and the mother would need the inheritive gene from her father (the mother doesn't nessecarily need to show it, just have a colourblind father) in order for a female to end up <span>actually colourblind. However, it's extremely rare.</span>
Technology has allowed humans to experience more efficient travel from place to place. People could travel all over the world with the help of a plane. Because of the increase in technology, people can now easily carry goods from place to place. A large amount of our produce, or the produce of other countries, can now be shipped all the way across the world. This increase of transportation and goods can now allow the population to increase.
