course of development. I kept them on my desk, in my dorm room, where the light from the window would hit it during the day. I also had an artificial light on the hornworms throughout the night to get more light exposure. The temperature in my dorm room is kept at 72 degrees, assuming it may have fluctuated a degree or two higher/lower depending when the air conditioner kicked in. The food source for the hornworms was mainly a mixture of wheat germ and agar, along with an occasional paper towel of water. As the hornworm grew bigger, I placed a piece of lettuce in the container as well. I observed the Tobacco Hornworm in the morning for 2-3 minutes, as well as the evening after I had placed the hornworm under more direct light. Each day I
Dr. Nagami had multiple reasons for writing the Woman with a Worm in Her Head. I think that she intended to educate the reader about many things. She wanted to highlight the background of the deadly diseases that she has encountered. She also wants to explain the limits of modern medicine. I also think that she wanted to put a human face on the patients that she encounters on a daily basis. She also was trying to explain how combating diseases like this and her profession as a medical doctor affected her.
The sowbugs remained in the damp soil for 34 minutes, and the dry soil for a short 6 minutes (Table 1). The sowbugs remained in the damp soil 85% of the time, as opposed to 15% on the dry soil (Table 1). These results suggest that moisture was a causative agent in environment preference for the sowbugs (Table 1).
Basic Scientific Knowledge on the Topic: Before exploring further research into the topic of the goldenrod gallfly Eurosta solidaginis, the current knowledge on the research topic must be explored. The goldenrod gallfly Eurosta solidaginis is a parasite on goldenrod plants (D. Crowe, personal communication, 2013). Very small (approximately five millimeters), the adult flies are very clumsy and are very poor fliers. Adult goldenrod gallflies live for approximately two weeks, making their life all about reproduction. The adult female fly is identified by their ovipositor, which is an egg-laying tube that extends from their body (Abrahamson and Heinrich, 2000). In order to protect their larvae, the adult female flies oviposit the eggs into the stem of the goldenrod plant Solidago altissima. While the females may lay several eggs per goldenrod stem, each plant usually ends up with one surviving larva in one gall. Once born, the fly larvae hatch from their eggs and begin eating the inside of the goldenrod stem. The larvae emit a chemical in their saliva which mimics a plant hormone that causes the plant to grow a gall in which the larvae live (Abrahamson and Heinrich, 2000). The larvae stay in the gall and then make an escape tunnel in the fall which they will utilize in the spring. The gallfly larvae produce a natural anti-freeze chemical in their bodies known as glycerol which helps to keep them alive in the winter by drying out the outside body tissues and allowing it to freeze while keeping the central cells liquid. Once spring does arrive, the larvae transform into a pupa and they finally become a winged adult.
We have cumulated a profit of $206 million over this period, second of the industry. Our goal of escalating profit has advised us to increase automation level and for cutting costs, which enabled us to have the margins of all products above 30% in 2019 and an average margin of 53.4% in 2024. Additionally, we invested to keep our products updated to the market trend with an attention to customer buying criteria. Moreover, starting from recent years, we run our full capacity with second shifts whenever the market need has a possibility to accommodate our production. To achieve a greater profit, we based our pricing strategy on the market movements in general by decreasing our price by $0.50 every year except for our Low End product-Acre.
The Sacculina carsini, or parasitic barnacle, makes it’s host a green crab, also known as the Carcinus maenas. The parasite in this relationship changes the host’s behavior. It also enables itself to survive, spread and continue this cycle. As talked about in “The Parasitic Sacculina That Bends Its Host to Its Own Will”, when a female barnacle is still in its larval stage, it finds a crab host, and it locates a certain joint in the host’s shell. When there, the parasitic barnacle sheds her outer shell and puts herself inside the crab. Once she is inside, she is in a slug-like form. She creates a root system of tendrils, which extend throughout the abdomen of the crab. The root system takes over the crab’s intestine, diverticulae and surrounds the stomach. This
The Meningeal Worm Infestation of up to 20 meningeal worms has been discovered in a single deer’s subdural cavity. The white tail deer are the preferred host, but they rarely ever suffer from any sick or neurological problems from this type of worm. We will see severe signs in llamas and alpacas; these are the two animals that can become infected with it frequently. The meningeal worm can cause damage to the central nervous system and could result in death, so it is important to try and catch it early and learn about how to prevent this deadly worm. Things that you should be familiar with about the meningeal worm are its life cycle, the signs in your animal, and any prevention or treatment options.
Background Information: Pillbugs are terrestrial Isopods which belong to the Class Crustacea. Appearance: flattened or rounded back, seven pairs of legs, sharp – angled antennae. Pillbugs have a set of overlapping gills on their underside. There are 12 different species of pillbugs found in the northern and central United States. However, there are nearly 4000 described species of pillbugs. They are fund in humid areas, compost piles, and leaf litter. They feed on dead vegetation such as wood and leaf litter. They cannot survive below -6.0 C, so they burrow 60 cm below the ground surface to reach safe temperatures. They reproduce during the months of May through September. If the pillbugs are irritated they will frequently exude a thick glue which serves to entangle predators, such as ground beetles, centipedes, and spiders.
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.
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.
Web. The Web. The Web. 17 February 2014. Society, American Heartworm Society.
Outline the physical similarities between the (Blaptica dubia) cockroach and the cricket. Explain previous studies on physical stress in the cricket and in different species of cockroaches. Briefly discuss how the metabolic rate between the two species has been found to be very similar.
Paragonimus westermani (P. westermani) is part of the phylum Platyhelminthes. Platyhelminthes are flatworms, and are characterized by being acoelomate, triploblastic, and having a simple bilateral symmetry (Berkley.edu). The P. westermani is a member of the Trematoda class. Trematodas are flukes (parasite flatworms) that live inside vertebrates as their primary hosts and inside mollusks as intermediate hosts (wikipedia.org-trematoda). The parasite’s order is Plagiochiformes and suborder is Plagiochiata. The family of the P. westermani is Troglotrematidae. Organisms in this family are oval-shaped, thick flukes whose teguments are covered in spines. Paragonimus, its genus, usually describes parasites of carnivorous mammals; however, this is not always accurate. Although there are 48 species in the Paragonimus genus, westermani is the most prevalent worldwide (Roberts 277).
Forensic entomology is the study of insects and arthropods and their relation to a criminal investigation. Forensic entomology can determine the postmortem interval (PMI) or how long since the descendants’ death, whether the body has been moved since expiring, and what injuries may have been sustained (Ryan, 2011). When decomposition begins, insects establish a colony to lay eggs on the remains; these eggs will hatch into larvae that will eat the human organs and tissues. Forensic entomologists can determine the specific insects present in the body and estimate how long a body has been left exposed by examining the stage of development of the fly larvae; however, these findings are not always plausible. The fly larvae look and act different at each stage of development. The time required for stage development is not only affected by environmental influences such as geographical location, climate, and weather conditions, but also by type of insect. The forensic entomologist must consider these conditions when estimating the postmortem interval. Knowledge of insects, their life cycles, and their habits make entomological evidence a priceless tool for an investigation. Forensic entomology has proved its significance in a number of cases; though circumstances such as weather, temperature, and time of year clearly affect the development of insect infestation, and the expert must keep these in the forefront of his/her mind (Innes, 2000).
Gregorio Samsa, un joven viajante de comercio, tenía una vida monótona y difícil porque él tenía, sobre sus hombros, toda la carga de recientes dificultades económicas a las cuales se enfrentaba su familia, por la quiebra del negocio de su padre. Un día se vio afectado por un evento sobrenatural e inexplicable: se había convertido en un insecto. Desde ese momento nada iba a ser igual.
The reproductive system was mainly located towards the anal area and inferior to the stomach. The penis was located in the middle. It was white in color and looked like a mealworm. The seminal vesicles were located on both sides of the penis. They were grayish pink in color and looked like walnuts.