I have read the question several times and I believe "A.The kelp draws nutrients from the water rather than the soil, which it does not have available." would be your answer.
Although it is true that kelp is temperature sensitive, the question states that "They use a temperature regulation system to keep the water temperature at about 12°C." So even with the added addition of sunlight, I think the temperature still stays generally the same. And as long as the temperature is between 5-20 C degrees, the kelp should be okay.
However, kelp does not work the same as most land plants, kelp does not have a root system. It instead has a "holdfast" anchoring system that does not transport nutrients. So how does kelp get nutrients? From the water directly. Since the question says nothing about nutrients in the water, and directly talks about nutrients in the soil, we can assume that their is no nutrients in the water (only in the soil). Making A our answer.
This is a copy/pasted answer from a question I also answered.
brainly.com/question/4540702
During the initial exposure to the allergen, contact is made with B cells, these B cells differentiate and produce IgE antibody. The IgE antibodies which works against the allergens are released into the blood stream where they binds to Fc receptors which are located on mast cells and basophils. Now, the mast cells has become sensitized and they will wait patiently for the second exposure. When contact with the allergen is made the second time, the allergen becomes attached to the IgE present on the mast cells and this result in degranulation which trigger a lot of allergic responses.
The answer would be c , plant growth because that is what is being measured in the experiment.
C. An amoeba is most likely to use pseudopods
I found the exercise on the internet. Attached is an image with the terms and the representation of the chromosomes mentioned above.
The term for the position a) would be homologous chromosomes. Position b) is gene locus. Position c) is recessive allele because it is represented by a small letter. Position d) is centromere. Position e) is sister chromatids. Position f) is alleles. Position g) is dominant allele because it is represented by a capital letter.