Answer:
when placed in hyper tonic solution , the cytoplasmic volume of elodea plant will be reduced, this is because, elodea is a water plant with high water potential; therefore,with cytoplasm of high water potential elodea will loose water from the cytoplasm to the external; hypertonic solution, of lower of potential by osmosis. This reduces the cytoplasmic volume.With time the protoplasm pulls away from the cell wall, and the whole elodea structure shrinks.
However,, when RBC is placed in hypotonic solution, of higher water potential than the RBC (which has lower water potential), the cytoplasmic volume increases as water moves into the cytoplasm by osmosis. The RBC swells and eventually busted. This is hemolysis.
Explanation:
C. If the algae made the sea turtles sick, then removal from the water and treatment would make them healthy.
Looking at the description of the situation, Shenita hypothesized that sea turtles were affected by toxins from a recent red tide event. So she removed them from the contaminate environment and treated them with a drug to counteract the red tide toxins. And the way things turned out, her hypothesis looked correct. With that in mind, let's look at the options and pick the correct one.
A. If the water is dirty, then it would make the sea turtles die.
* This is a possibility, but it's rather generic and not specific to the situation Shenita observed. So this is a bad choice.
B. If the chemicals in the water made the sea turtles sick, then filtering the water would make them healthy.
* This is also true. But Shenita didn't do any water filtering and this doesn't apply to the observed situation. So another bad choice.
C. If the algae made the sea turtles sick, then removal from the water and treatment would make them healthy.
* This pretty much describes what happened. So this is the correct choice.
D. If the sea turtles are in clear ocean water, then they should go to the mote marine lab.
*This doesn't describe the situation, so it's a bad choice.
Here's the fact:
"Altering the DNA of plants always reduces the nutritional content" is a FALSE statement. In fact, GMO products often have nutrients added.
"<span>Genetic modification reduces the genetic variation in both plants and animals" is a TRUE statement. The natural genetic variation that keeps species thriving is decreased when the plants are modified. Less diversity within a species puts it at an increased risk of being affected by disease or even becoming extinct. Genetic diversity causes resilience, since not every strain of a species will die off in the case of contracting a disease because they are all different. The more similar species are, the more they are at risk. However, so long as companies make variations of GMO foods, we should be fine.
"There have not been enough long-term studies to prove that this food is safe" is a TRUE statement. Some modern studies say genetically modified foods bad, some say they're good, some say they're neutral; however, since GMOs have only been a thing since 1994, there are no long term studies. Without long term studies, there is no way to confirm the safety of GMO foods.
"There have been many studies showing that these foods cause disease" is a FALSE statement. There have been many studies of GMO foods, but many haven't found any worthwhile data, except a few allergies.
Answer: There have not been enough long-term studies to prove that this food is safe.
Hope this helps!</span>
The correct answer is absolute threshold.
Absolute threshold is a neurobiological term referring to the lowest level of a stimulus that a person is able to detect. The stimulus can either be touch, sound, taste or light.
Regarding taste, the absolute threshold of taste is the lowest concentration of a certain compound which can be detected by the human sense of taste.
