Duckweed Lab Report

In our experiment, we examined the behavior of isopods by conducting the experiment based on our hypothesis: “If ten isopods are put into the test chamber, 5 in sand and 5 in soil, which environment will the pillbug prefer.” We hypothesized that the isopods would favor the soil more than the sand because pillbugs are typically found in soil and not in sand. Pillbugs are favored in soil because the natural role of a pillbug is to eat dead and decaying things but, in sand there are no nutrients available for pillbugs. Pill bugs are mostly found in moist environments, due to having gills, gills only function when they are wet so pill bugs will inhabit places in which air holds a lot of water

The data collected in the experiment does support our hypothesis. By examining the data as a whole a trend of decreased cellular respiration in seedlings soaked in solutions with increased NaCl concentrations. The water treatment which had a 0% NaCl concentration had a higher respiration rate than the seedlings soaked in the 3% NaCl concentration. This overall trend of the data supports the

As a result of being in a narrow container, there was nowhere for the duckweed to seek protection from the constant exposure to light. Duckweed tend to bleach as a result of too much light exposure and prefer to grow on surfaces where they can seek protection from shade (“Growing Duckweed,” 2015). Another error in the experiment was not testing the quality of the water. Tap water was used, as opposed to distilled water that is boiled to remove contaminants and chemicals or purified water that has most harmful substances removed (French, n.d.). An impurity or chemical in the tap water might have contributed to the death of the

The purpose of this experiment is to investigate the effects and results of agricultural runoff, as well as how varying types of fertilizer (conventional and time-released) may affect the ever-growing problem of eutrophication. If the conditions of agricultural runoff are simulated, then the algae will grow plentifully and consequently kill the other life in the water. If the different types of fertilizer are tested (conventional and time released), then the time released will be best to support and sustain the life in the simulated ecosystem.

Acid rain will have a negative impact on the plant growth in the wetland environment, this will result in plants dying and

The sodium bicarbonate provides carbon dioxide necessary for the photosynthesis process. In this experiment, the sodium bicarbonate increases the rate of photosynthesis.

Sometimes the youngest people with the slightest amount of knowledge can be the significant role models to others. Jerry Spinelli openly displays this in the novel Milkweed by creating the protagonist, who happens to be one of the youngest characters in the novel, a character who creates some of the greatest impacts on others. Misha, an orphan has very little knowledge yet teaches those around him some of the wisest and most valuable things. Jerry spinelli truly exemplifies, People teach others so that others can teach people.

The data observed and recorded in this lab shows that the concentration of miracle gro’ does affect the growth rate and germination speed of black eyed peas. The data is shown through two graphs and two data tables. The control group in this experiment is the seeds with a 0% concentration of miracle gro’, therefore the seeds with just water. The experimental groups are different concentrations of miracle gro’ including a 10%, 15%, 20%, 25%, and 30% concentration. The variable in this experiment is the amount/concentration of miracle gro’. On day one no seeds germinated. By day two, seeds in the control group, 15% and 25% experimental groups had germinated. On day two the experimental group with 25% concentration of miracle gro’ had the most seeds

To test the hypothesis the impact of temperature on milkweed bugs, they will be placed in three different temperature conditions. The temperatures include: 10°C (refrigerated), room temperature 22°C and at 28°C. These various temperatures represent the lowered temperatures from the milkweed bugs optimal temperature (28°C). The day and light cycle for these conditions will be 16L:8D. To test the hypothesis of the effect of light regime on development, milkweed bugs were placed in 22°C condition with a 16L:8D cycle and 22°C condition with a 2.5L:21.5D cycle. About 35 milkweed bug eggs will be placed in a clear container for each treatment group.

This lab uses a lake simulation to study how the addition of nutrients and toxins can affect the lake, its inhabitants and the surrounding area. There is a strong focus on the addition of Phosphorous and added toxins because both are key elements in growth in lakes. The Virtual lake includes these five simulated species; green algae, cyanobacteria, bosmina, daphnia, and trout. There are two types of phytoplankton in the lake model, green algae and cyanobacteria. Green algae are a very diverse group that are photosynthetic, aquatic, plant like organisms that have a very simple reproductive structure. Green algae growth is a healthy and natural part of a lake’s ecosystem but the addition of nitrogen and phosphorus from fertilizers and other pollutants can cause an excessive growth problem for some lakes.

Something I learned about in Herbology 301 is healing. Healing is an important part of our life, which is why i wanted to write about it. Healing spells are needed in everyday life, and if we were to ask someone how many healing spells they 've used in their lifetime, the number would probably be too high to remember. I also learned that mental illnesses are not one-spell-cure-all diseases, which is very helpful to know.

Abstract: The main focus of this lab is on animal behaviors in terrestial isopods, also known as pillbugs. There are many purposes to this lab experiment. First, these pillbugs are put into four different types of enviroments, also known as chambers, light v. dark, hot vs. cold, moisture vs. dry, and lastly shelter vs. open. In these different chambers, there are 10 pillbugs, 5 placed into each individual chamber and then observed for up to 5 – 10 minutes. In this lab we observed that pillbugs prefer light areas, hot temperatures, moist environments, and lastly sheltered spaces. In this experiement, there were two behaviors kinesis, and taxis, our pillbugs showed taxis behavior in all four types of environments.

The novel Milkweed along with personal experiences of my own, I have come to realise that words can have a powerful affect on your life. Words have the ability to lift people up, tear people down, and define a person’s character.

The book “Milkweed” by Jerry Spinelli is a story about an orphan gypsy boy named Misha living through the hardships of World War II and the holocaust. Throughout the story Misha meets many people who help him and some that do not. He meets other people like him, children who are also orphans and Jewish people trying to survive the holocaust. The main boy who helped Misha in the book we an older boy named Uri who helped teach Misha to be selfless and help other people and how to lay low, to stay away from trouble he couldn’t get out of in order to stay alive. The theme of “Milkweed” is trust. In the time that the book takes place in its difficult to trust people because they didn’t know if the person would help them, do something to them, or turn them over to the Nazi’s.

Plants are a major necessity in the balance of nature, people’s lives, and our terrain. We may not realize it, but plants are the ultimate source of food for almost 95% of the world population so says the National Group of Food. It’s a fact that over 7,000 species of plants are being consumed today.