Introduction: An ecosystem is the balance of biotic and abiotic organisms to produce a sustainable environment for organism to inhabit and thrive in. The survival of a species is dependent upon changing and growing from the circumstances that has befallen the species. One can see this process by the life history of a species and how the organism changed by adapting to the circumstances. Whether from predators, competition of resources such as light, food, water, or even competition with each other. When an environment has a negative effect on the species it can manifest the organism to feel stressed and responded to the induced change. A stressor that can be placed on a system can vary ranging from predators to food limitations on a species, or density of a population. Density shares an indirect relationship to food limitation. As the population …show more content…
We know that density has an indirect relationship to food limitations. When the population is controlled one can see the survivorship of meal worms solely by the food substrate being limited. Some reactions that might occur are: Meal worms with less access to a food substrate will either die off or pupate faster to the next life stage to conserve energy due to the lack of resources. Meal worms at a moderate range of resources could be at equilibrium. Due to being somewhat stressed but not as pressed into pupating into the next stage due to moderate competition of resources. Finally, Meal worms with a higher range of access to a food sources will not be as stressed to pupate to the next life stage due to having less competition of resources. By understanding the limitations emplaced on the species (meal worms) and the response to the change. One can father understand and predict the behavior of spices to their environment. which in turn helps to one to identify indirect relationships to their
Purpose: The purpose of this lab is to investigate the various components of different ecosystems in a smaller representation and study the conditions required for the ecosystem’s sustainability as well as the connections between
I learned that the phylum Annelids can consist of many creatures such as earthworms, leeches, and scale worms can adapt to a variety of environments. Annelids’ bodies are divided into segments which are seen as rings by the naked eye. They have muscles which help them move by contracting their longitudinal and circular muscles. When Annelids take in food, the food particles travel through one end of the body and are excreted out the other side. The video enhanced my understanding about Annelids because without seeing different species and what classified them as Annelids I would have never known an earthworm or a leech fell into that phylum.
Oftentimes, people can recall at least one song they know that is undoubtedly catchy because of its repetitive nature. That song can become a nuisance, when it will not leave your mind. When a melody gets stuck in your head, sometimes it could take a whole day to forget the tune. A certain tune can be stuck in your brain for many years! In Oliver Sacks’ passage, “Brainworms, Sticky Music, and Catchy Tunes”, he talks about “earworms”, or a pathological repetition. Sacks uses patterns of development to inform the modern reader about the dark side of music.
The focus of this lab on planaria regeneration and development. Having been taught the gradient of morphogen and there were many experiments testing this possible phenomenon of regrowth. In a planarian there is a single adult stem cell type called the neoblast. Neoblast are abundantly present throughout the body and it divides continuously. This neoblast has the ability to regenerate different cell and organ types in the planarian, from the brain, digestive system, the sensory system to even the reproductive system. With this continuous stream of continuous division of cells it allows the cells of the planarian to be rapid in self-renewal of the entire
Flatworms belong to the phylum Platyhelminthes. They have the simplest body plan of all bilaterally symmetrical animals. They are called flatworms because their bodies are compressed. The mouth is the only opening into the digestive cavity the flatworms have. Food is taken in through this hole and wastes are discharged also through this hole. Flatworms have a well-defined nervous, muscular, excretory, and reproductive system. The flatworm distributes the food it digests through a digestive tube that branches throughout all of its body parts. The fact that the worm’s body is flat serves many purposes. It allows the worm to hid in small spaces, to fit into the opening of other animals if the worm is parasitic, and it means that all the cells are close enough to the surface for exchange of oxygen and carbon dioxide with the environment (Meinkoth 399).
Humans have only discovered less than five percent of the ocean, while the ocean makes up seventy percent of our world. Even though we have explored so little of it, we have found very interesting creatures such as giant squids, yeti crabs, and zombie worms. None of these animals are similar in any way, not even their habitats, appearances, or diets. However they use these factors to be able to survive in sometimes extreme conditions.
This disease may be on the brink of being eradicated entirely but that doesn’t stop it from being one of the grossest things that anyone has ever seen. The parasite enters the body via unsafe drinking water. When people drink water infected with water fleas that have have been hosting the larvae of the parasite. There are no symptoms, to begin with, but about one year later, blisters on the feet or legs begin to develop and then the adult fully developed worm crawls out of the host body over a period of a few weeks. It’s said that the pain is intense and can incapacitate a person for weeks at a time. The pain can also continue for months after the infection. The parasite needs to infect a person at least once a year in order to continue. There were an estimated 3.5 million cases in 1986 but the disease has been greatly reduced over time and only 22 cases were reported in 2015. This disease will probably be the first parasitic disease to be completely eradicated in humans.
For those 46 days the hornworm spent its time in a vile with both food and moisture. The temperature for the hornworm was colder than average. I was able to observe both the egg and larva stages. The stages ranged from just 2 days to 22 days. Although my Hornworm has not yet reached the pupal stage, through my research it says it normally takes around 2 weeks.
During the planaria experiment my intentions for my flat worm was to cut it in-between the eyes to give it two heads. Before making the dissection the first thing that had to be done was to feed the planaria, so it had the energy to regenerate.
There are two different types of worms or parasites that can affect animals, in relation to this report the focus will be on parasites that affect sheep. They are called endoparasites and ectoparasites. This report will predominately emphasise on the endoparasites, or the internal parasites. These endoparasites are divided into three categories; nematodes [or roundworms], cestodes, [or tapeworms] and trematodes [or flukes]. The parasites are broken into these groupings due to their structure.
The experiment was made to figure out how mealworms react to different temperatures and which environment the worms liked better. The data and results of this experiment revealed that most of the mealworms prefer colder environments instead of hotter ones. Four out of the six mealworms prefered the cold over heat. The cold areas are better for mealworms because the worms are nocturnal, which means these worms prefer cooler and darker areas. In the beginning of this experiment most of the mealworms wouldn't move very much and would stay put in the center of the container. The mealworms were distracted by trying to escape, and there were some small crumbs in the container that must have also distracted the worms. The conclusion of this test on
Before becoming a beetle, a mealworm goes through four stages of metamorphosis (“Mealworm Life Cycle,” n.d.), which lasts three to five months (“Darkling Beetle/Mealworm Information,” n.d.). These stages include: egg, larva, pupa, and adult. The amount of time spent in each life stage depends on environmental conditions such as food, water, and temperature. During the first stage of life, time is spent inside an egg. The small, white egg is the size of a dust particle and bean-shaped, and the egg usually is covered up by dust and dirt because it is sticky. After one to four weeks, the egg hatches and larva will be seen. At this stage, the organism can be called a mealworm. The larva stage lasts about eight to ten weeks. When the egg hatches, the larva is small in size, but will eventually grow from one to one and half inches long. During this life stage, the mealworm sheds its outer shell to grow and eats. The mealworm will molt one last time, and during that time the mealworm will turn into a pupa. The pupa stage lasts one to three weeks...
An ecosystem is a group of living plants, animals and organisms that interact together in a non-living environment (Ellis). Animals, plants, water and air work together in an structured fashion establishing a balanced system. To have a fully functioning ecosystem, each animal and plant plays a unique role in keeping the ecosystem healthy. There are three categories of living organisms that make up an ecosystem; producers, consumers, and decomposers. The two most imperative roles in the ecosystem are the soil and sun. The sun aids the water cycle and comfortable lifestyles of the animals and the soil stores the nutrients that are required for plants to grow. Ecosystems are a base to all humankind; they provide many goods and services that
In many parts of the world, ecosystems’ temperatures begin to rise and fall to extreme levels making it very difficult for animals and plants to adapt in time to survive. Climate has never been stable here on Earth. Climate is an important environmental influence on ecosystems. Climate changes the impacts of climate change, and affects ecosystems in a variety of ways. For instance, warming could force species to migrate to higher latitudes or higher elevations where temperatures are more conducive to their survival. Similarly, as sea level rises, saltwater intrusion into a freshwater sys...
The branch of science that deals with how living things, including humans, are related to their surroundings is called ecology . The Earth supports some 5 million species of plants, animals, and microorganisms. These interact and influence their surroundings, forming a vast network of interrelated environmental systems called ecosystems. The arctic tundra is an ecosystem and so is a Brazilian rain forest. The islands of Hawaii are a relatively isolated ecosystem. If left undisturbed, natural environmental systems tend to achieve balance or stability among the various species of plants and animals. Complex ecosystems are able to compensate for changes caused by weather or intrusions from migrating animals and are therefore usually said to be more stable than simple ecosystems. A field of corn has only one dominant species, the corn plant, and is a very simple ecosystem. It is easily destroyed by drought, insects, disease, or overuse. A forest may remain relatively unchanged by weather that would destroy a nearby field of corn, because the forest is characterized by greater diversity of plants and animals. Its complexity gives it stability.