phytoremediation
herbicide tolerance
gene transfer to nontarget species
Answer:
The answer is D. Gene transfer to non-target species.
Explanation:
Using DNA technology we have made several genetically modified crops called GM crops. But sometimes the transgenic trait or gene may effect the non-target species. For example Bt-crops were found damaging the soil health. These pest resistant Bt-crops release Bt toxin near the soil root zones. High levels of Bt toxin can affect the health of soil as well as the soil insects. Hence GM crops must be monitored for the effects on non-target species.
Answer:
The correct answer is: Gene transfer to non-target species. It is believed within the scientific field that these risks directly affect environmental impacts and need to be assessed on a case by case basis and recommended post-release ecological monitoring.
Explanation:
Transgenic crops could possibly entail positive or negative indirect environmental effects through changes in agricultural practices such as pesticide and herbicide use and cropping patterns. Agriculture affects the environment it does not matter which type we are talking about. Then it is normal to conclude that the use of new genetic techniques in agriculture will also affect the environment.
B. Albert is correct. (wrong answer)
C. Lorraine is correct.
D. Both Lorraine and Albert are correct.
The alimentary canal is also called a food pipe, it is connected to the mouth, through which the food and liquid are transported in the body.
An alimentary canal is a thin canal that is attached to the mouth from one end and to the stomach with another end. It transfers food and liquid to the stomach and is also used for breath when the nose is blocked.
The alimentary canal is a hollow muscular tube that is a part of the digestive system. The food present in the mouth gets into the stomach through this canal.
Thus, the alimentary canal, commonly known as the "food pipe," connects to the mouth and is the passageway for food and liquid into the body.
Learn more about the alimentary canal, here:
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Gastric juice would digest the stomach lining, resulting in ulcers.
Stomach pH would increase, resulting in acid reflux disease.
The cells would break down more slowly in order to protect the stomach.
Answer: Option B
Explanation:
The gastric juices helps in the digestion of the food but the pH of the these juices can affect the inner lining of the stomach if there would have no mucus secretion from the epithelial cells.
The low pH would have been destroyed the lining of stomach and this can result in the causing ulcer. To prevent this the walls of the stomach has epithelial cells that secretes sticky secretion known as mucus.
Answer: True.
Explanation:
Organic fats are nonpolar molecules, while water is a polar molecule.
Since fats do not have any polar part in its structure, to be dissolved in water they would have to break some of water's hydrogen bonds. But this does not happen, so the fat is forced to stay separate from the water. This means nonpolar molecules are repelled by water and do not dissolve in it. They are hydrophobic compounds. So the lipids just float in the water without blending into it.