Answer:
this study is clearly an observational work
Explanation:
experimental studies involve to establish direct associations between a traits and its phenotypic effects. For example, a classical experimental study would involve to map a nonsense mutation in the ACTN3 gene significantly correlated to the non-sprinting phenotype
Answer:
The correct answer is phytochemicals.
Explanation:
Phytochemicals refer to the components, which are generated by plants. They are witnessed in vegetables, fruits, beans, grains, and other plants. Some of these phytochemicals are considered to protect cells from destruction, which could result in cancer. The phytochemicals are not considered as nutrients, but possesses many health benefits:
1. It helps in ceasing carcinogens from attacking cells.
2. It helps to prevent the generation of potential cancer-resulting substances.
3. It assists the cells to prevent and eradicate any kind of cancer-like modifications.
Some of the phytochemicals, which are considered as the most beneficial ones are polyphenols in tea, beta-carotene and other carotenoids in vegetables and fruits, and isothiocyanates found in cruciferous vegetables.
Answer:
Why do you need to start with 4x in magnification on a microscope? The 4x objective lens has the lowest power and, therefore the highest field of view. As a result, it is easier to locate the specimen on the slide than if you start with a higher power objective
Explanation:
C) ribosomes and mitochondria
Answer:
By using carbon-14 in the experiment in order to prove the statement.
Explanation:
Translocation occurs in the plant body in order to transport amino acids and sucrose from one part to another by the phloem tissues. In order to prove this, we have to incorporate radioactive element in the amino acid or sucrose which shows us that through which layer the amino acids and sucrose move in the plant body. For this purpose, carbon-14 can be used to trace the path of the translocation of amino acids and sucrose. Through this experiment we will find out that phloem layer is the path used by the plant to move amino acids and sucrose from one part to another.
