Creating A Sustainable Terrestrial Ecosystem Within A Sealed Glass Jar

This lab was conducted to discover which level of light (measured in lux) would make Spinacia oleracea leaf disks float the fastest. Lux (lx) is latin for light, and is the unit of measurement for light in the International System of Units (Rouse 2011). Light plays a key role in the process of photosynthesis and in this we are essentially measuring the rate at which Spinacia oleracea leaf disks convert a bicarbonate solution into oxygen. The oxygen then would bubble up, allowing

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

5. What is the advantage to a plant of closed stomata when water is in short supply? What are the disadvantages?

Adaptations in terrestrial environments involve the structural and functional qualities of the organism, to achieve the adequate intake of oxygen and other essential substances for the animal to survive, the evolution of more complex anatomical structures were required. Gravity is stronger on land than water, which means terrestrial organisms have to be more structural than aquatic organisms. Also, the balance of gas exchange with water loss is a key feature to survive in land. For example plants, when doing photosynthesis require carbon dioxide and water to produce oxygen, at the end of this process a lot of water is lost and terrestrial plants have to compensate the water being lost and the water taken from soil. Furthermore, the dispersal of gametes by wind or other animals have helped plants reproduce in large amounts and create varieties of species of the same kind. Short-term weather patterns as well as long-term climate conditions based on precipitations, temperature, wind, humidity as well as other factors are survival obstacles that organisms in land have to adapt to live; endothermic organisms have to maintain a constant internal

Read "Lab 3: Biodiversity." This lab will allow you to investigate how various organisms alter their environments. Additionally, it will allow you to assess the health of ecosystems based upon their biodiversity. Then, you will utilize this information and your eScience lab kit to complete Demonstration 1 and Experiment 1 on the Week Three Lab Reporting Form. Make sure to complete all of the following items before submission:

Ecosystems maintain themselves by recycling energy and nutrients obtained from external sources. At the first trophic level of primary producers i.e. plants and algae, use solar energy to produce organic plant material through photosynthesis.

In the course of this work , we have demonstrated the strong survival skills of the cacti in the Sonoran Desert. They take full advantage of the rainy seasons in the desert, and strengthen their ability of absorbing and storing water; they change their appearance to adapt to the arid environment by, for example, evolving the leaves into the spines; they adjust the photosynthesis by separating it into two steps. All these changes that the desert plants have made allow them to acclimatize to the harsh environmental conditions in the desert.

The second stage of Bronfenbrenner's Ecological Theory is the Mesosystem. The Mesosystem is a system comprising the connections between immediate environments (i.e., a child’s home and school). The Mesosystem provides the connection between the structures of the child’s Microsystem (Berk, 2000). Examples consist of the connection between the child’s teacher and his parents, and between his church and his neighborhood. For example, if a child's caregivers

Objective: To create an ecosystem contained in a bottle with both terrestrial and aquatic environments sealed to the outside world.

During our biosphere project, some things went well, like having soil from the ground, and others made it worse. I hope our findings will be useful in the biosphere you're about to start.

Ecology today can be defined as “the study of the interrelationships between living things and their environment”. It is important to understand that when we say that ecology includes the “environment”, we are talking about everything that is external to an organism, all the biotic and abiotic. Nowadays it also attempts to understand and explain the how and why of the origins and mechanisms of interactions.

In this study by Kuffner et al., a seven-week experiment was performed on crustose coralline algae to examine the effects of OA on coral survival and mortality. They studied six outdoor mesocosms and manipulated the habitats by supplying the mesocosms water from adjacent reefs to simulate elevated CO2 concentrations. This study is important for my research topic and question because it examines how mesocosms react to changing OA for future studies.

Plants can retain up to 15 tons of carbon dioxide and discharge 11 tons of oxygen amid the jute developing season (around 100 days) which is useful for our condition and planet.

Biogeochemical cycles are important to the sustainability of all life. Chemical elements necessary for the growth and reproduction of all organisms have a limited quantity on earth at any one time, other than the occasional meteor that brings with it new matter. It is therefore important that the recycling of these chemical elements is efficient. Autotrophs are the basis of almost all ecosystems. The rate that autotrophs produce and transfer energy is vital to the capacity of organisms that can inhabit these ecosystems. To understand the rates in which certain species’ leaves decay and release the energy stored within them can demonstrate how quickly the energy becomes available to organisms in higher trophic levels.

One of the greatest things which is being talked about presently is the growing concerns of scientists, environmentalists, and people of this planet when it comes to environmental issues. Environmental issues is something that is discussed frequently in the news, in politics, and in classrooms around the world. More and more we are becoming informed and aware of the current and ever facing environmental crises that are taking place around the world today. Some scientists and environmentalists believe that many things within our lives daily contribute to the growing detriment of the environment. This paper will examine the concept of the biosphere, the differing viewpoints of environmental optimists and environmental pessimists regarding the growing environmental issues, and the ways in which we can work to preserve our environment and solutions to environmental issues.