Compare And Contrast Cacti And Pigmyweed

In the 1930’s John Steinbeck wrote two stories, The Chrysanthemums and Of Mice and Men. In these stories, Steinbeck highlighted the struggle and oppression of women during that time Both of his writings took place on a ranch in Salinas, California during the 1930’s, during the great depression. Both Elisa from The Chrysanthemums and Curley's wife from Of Mice and Men had internal conflicts and despised their husbands. Steinbeck's women proved to be strong and intelligent, especially compared to the men around them.

Plants are found everywhere on earth, up high on the ridge and down low in caves and caverns. The types of plants that live in these places depends on many factors. These factors are separated into two different categories, the biotic factors and the abiotic factors. Some of the biotic factors include, predation, competition, and habitat destruction. Plants with limited competition and large amounts of resources will be in a higher abundance than plants with limited resources and higher competition rates will be confined to areas and either out competed or will be the dominant species. Certain plants adapt to these factors and thrive and others don’t do as well. Some of the abiotic factors include, sunlight, water, temperature, and wind. These

When going to the sand dunes of the Illinois Beach State Park, we wanted to test the effects of different environment on succession, ecosystem development. The problem was to find out if there is a succession (ecosystem development) of plant communities taking place. If the sand dune’s closer to the lake are newer than those further inland, then, I believe succession will take place because the newest dunes do not have rich enough soil to support more complex plants like trees and shrubs growing in the areas that have already gone through later stage succession. The data supported our hypothesis.

Acidity increases by ten times for one pH level increase. Soil pH is a major constraint on plant growth. Since plants are the base of the ecosystem, pillbugs may be affected by the pH change as well. Soil acidity can be assisted by addition of certain other plants, like AM fungi, or the addition of basic materials (Kawahara, et. al., 2016). We decided to investigate which pH level pillbugs naturally preferred. We created three different choice chambers that had pH levels of 5, 7, and 9. This experiment will test if pH has an effect on pillbug choice of habitat.We predicted that there will be more pillbugs in the choice chamber with a pH of 7 because a pH level of 5.5 to 7 is considered to be the normal, natural environment of pillbugs. Usually, the pH that pillbugs are found in are 5.5 to 7 (Kawahara, et. al., 2016). In each habitat, the number of pillbugs will be counted every minute for 15 minutes. If a pillbug is in between chambers during the counting, they may be counted for the chamber to which they are

This experiment, which was used to explore the Theory of Evolution created by Charles Darwin. The use of natural selection was apparent in the artificial modification of an organism's traits which aided in this investigation. Through this experiment the Wisconsin Fast Plant was used. It is a fast-growing organism developed to improve the resistance to disease in cruciferous plants. This plant aids scientist in the exploration of environmental effects on population due to the speed to which is matures and reproduces. Artificial selection was stimulated by the selection against plants with few hairs(trichomes). Trichomes create a wider variation which means it is polygenic. The plants that had only a few trichomes were

Competition happens between two or more things. In talking about plants they compete with each to survive. When competing against each other to survive they are using soil, water, nitrogen, and space. In using theses resources and having theses available gives the plant a greater chance in living. Even though plants compete environmental wise it is still scene that there is a lot of unknown to why plants compete. Some researchers believe it could be because of the root size of an individual plant or the size of the seed, which gives it better competition in surviving (Miller, 1995). Different types of competition can happen between plants likes intraspecific and interspecific competition. Miller (1995) believes there is not enough research shown to make a determination as to why competition between plants happens and that there should be research done in looking at the evolution of plants in different environments where they can compete with each other. In looking at competition in plants in class the experiment that we conducted looks at the Brassica rapa in a intraspecific competition in different densities. Miller (1995) found that the B. rapa in intraspecific competition did have increase in the number of flowers that were produced. Comparing this to the finding of Miller, when looking at different densities of plants in a interspecific competition could the B. rapa have more of a change in growth because a higher density will have more seeds and the B.

A plant's growth ability is dependent on its ability to acquire the resources it needs to survive. Competition such as interspecific and intraspecific, limiting resources, and population density affect the fitness level of a plant. This experiment was conducted in order to test the capability of collards and radishes to grow in manipulated densities under interspecific and intraspecific competition. I hypothesized that both collard and radish plants will grow more efficiently in single species pots under low-density conditions. I also hypothesized that in the mixed species plots the radishes will be more fit to survive and grow better than the collard plants in both the high and low-density pots. Both high and low density and single and mixed species plots were planted and results were observed. There was a significant

This report discusses an experiment to study the relationship between the ecological niche and competition. The hypothesis formulated states that if competition traits are identical and resources are abundant than multiple species will be able to coexist, and if one species has an advantage over the others than this species will be more likely to out compete another species for resources. The objective of this experiment is to use a simulation model of a rabbit pen containing four different “species” of rabbits. The model establishes rules for each species that are based on a number of important characteristics reflecting their ecological niches and their competitive abilities. These

Since organisms living in communities form interdependent relationships, a change in the abundance of one species will not only affect the physical and more direct interactions, but could indirectly affect the number of other species within the community as a consequence (Wootton 1993). These indirect affects rise because the interactions between pairs of species are not independent of other species, such as increasing the density of vegetation may increase the survival rate of the prey, reducing the intensity of the interaction between the predator and prey (Wootton 1993, 1994). An

Second, the reading states that park wildlife was affected as well. In contrast, the professor in the lecture averts that the small plants that grow create ideal

Within communities, organisms compete for limited resources (food, space, mates, shelter). 613 of our native species (plants, birds, fish), compete with 240 introduced plant species, 19 introduced bird species, 9 introduced mammals and 2 amphibians. It is estimated that we have lost 30 native bird species due to this competition.

Biobottle Write-up In the biobottle experiment, the purpose was to create a closed ecosystem, containing biotic and abiotic factors, which aimed to sustain life without contact with the outside world throughout a period of six weeks. For the procedure, the ecosystem was to be observed over this time. The experiment began when a one-quart mason jar with its contents was sealed on October 7, 2015. In the beginning of the experiment, the known contents of the jar and initial rationales behind them (italicized) included: ● Water from the middle pond filled to the 600 mL mark of the jar (about 550 mL): the environment for the aquatic ecosystem with enough room for gases at the surface ● Pond mud filled approximately halfway between the bottom and 100 mL mark of the jar: source of nitrogen and miscellaneous organisms ● 2 small sandstones: phosphorus used for phosphorus cycle ● 1 stick: for animals to use for movement ● 1 leaf: nitrogen;

The purpose of the paramecium experiment was to observe competition or allelopathy between two different species of paramecium in the laboratory. Allelopathy is a way organisms inhibit or affect other organisms when developing in nature. This insures the survival of one organism against another organism. For instance in plants, some can release a chemical that enters the environment and inhibits the growth and development of surrounding plants. Another example in nature is plants developing defenses to prevent herbivores from eating them. This kind of competition happens in nature when the need for resources is limited and survival is necessary. Competition is displayed throughout nature all the time. A man named Georgy Gause previously conducted this experiment between P. aurelia and P. caudatum. He determined that different factors influence how the two species compete and coexist. Ever since then not many scientist have attempted to experiment on paramecium. Only until recently have more experiments been attempted. The issue with the experiment was that it was conducted in 1935 and nowadays there are more advance ways to conduct and interpret the experiment and results.

Nematodes, the marvel of evolution possess incredible ability to survive extreme weather events and hostile environments with a simple body organization. Genome sequences of model nematodes have revealed that many genes and physiological processes in these worms are common to humans, higher animals and plants. Understanding the molecular mechanisms underlying their survival under adverse environments may provide new opportunities in developing novel strategies to minimize/mitigate the impact of global warming. Nematode communities in soil are composed of a variety of trophic and ecological groups which can be directly linked to key ecosystem functions like primary production, primary consumption, secondary consumption, decomposition, etc. Because of these attributes, soil nematode communities serve as an excellent model system for studying impacts of climate change on the belowground productivity. Nematodes are currently being extensively investigated in most studies analyzing response of terrestrial ecosystems to climate change. They are ubiquitous, diverse and the most abundant group of multicellular organisms on the earth. They are represented at more than one trophic level in soil food-webs as they act as primary consumers (herbivores), secondary consumers (bacterivores and fungivores) and tertiary consumers (omnivores, carnivores and predaceous nematodes). They play multiple and contrasting roles in regulating productivity of plant and animal based production systems.

The research into the theory of social disorganisation is a vast subject rich with research stemming from the 17th century, thus making it a complicated subject to analyse since there are so many sources to draw from. Research into social disorganisation started with plant and the urban change which led to many different fields like environmental criminology (Brantingham and Brantingham, 1981). French research done by Warming (1909) into plant biology found that plants live in communities with varying states. He found that communities with predominately the same species have more competition with nature than with each other, communities with several different species however competed for limited resources more among