*Commensalism is a class of relationship between two organisms where one organism benefits but the other is neutral‚ there is no harm or benefit. An example of commensalism is a flatworm attaching to the horsecrab and eating the crab’s food while the crab is not affected. Commensalism *Parasitism is a type of symbiotic relationship
Premium Symbiosis Predation Mutualism
Planaria Regeneration in Ideal Temperatures vs. Cold Temperatures Christina Malfas Abstract Planaria are flatworms that live in quiet freshwater bodies. They live in a narrow range of temperatures‚ from 22-24°C. They regenerate asexually‚ specifically through a process called epimorphosis‚ in which they completely regenerate one half of their bodies after splitting themselves in two. The diffusion gradient model assumes that cells in an organism “know” their orientation on that organism due
Premium Stem cell Human Insect
Introduction: In this experiment‚ the investigators have attempted to solve the questions of‚ “How polluted is U-High’s stream?” and‚ “How can water quality be measured?” They initially believed the creek to be of good quality. Many organisms within the water rely on dissolved oxygen‚ including fish‚ macroinvertebrates‚ and oxygen. Fish and macroinvertebrates use dissolved oxygen to breathe through their gills and bacteria relies on dissolved oxygen to decompose dead organisms. Dissolved oxygen is
Premium Water Water pollution Oxygen
Biology 1309 Review Kingdom Animalia-Protostomes Match the following characteristics with the phylum that they describe; 1. First phyla of animals in which the digestive system is complete. NEMATODA 2. Acoelomate. Platyhelminthes 3. Pseudocoelomate. NEMATODA 4. First phyla of animals with cephalization. Platyhelminthes 5. First phyla of animals that is triploblastic. Platyhelminthes Define the following: 6. Cephalization= Animals with a concentration of nerves and sense organs in the
Premium Hookworm Flatworm
Raccoons can carry several bacterial diseases and parasites that can be transmitted to humans and pets through a bite or the ingestion of raccoon waste. Some diseases that can affect humans and pets include leptospirosis‚ salmonella‚ roundworm‚ and rabies. Although‚ raccoons are notorious for carrying rabies‚ there has only been one case human death from raccoon rabies in the United States. Some signs that a raccoon may have rabies include aggressiveness‚ unusual vocalization‚ and excessive
Premium Predation Animal Hunting
disease‚ measles‚ mumps‚ chickenpox‚ HIV‚ Hepatitis B‚ warts and influenza. Fungal infections a few examples of these are thrush‚ ringworm and athlete’s foot and finally parasite infestations like scabies‚ lice‚ head lice‚ fleas‚ threadworm and roundworm. 1.3 Infection is Microorganisms transmitted to host’s cells‚ tissues or body cavities they might but do not always cause illness. Infectious diseases are transmissible from one individual to another. Colonisation means to cause infection organisms
Premium Bacteria Hygiene Infectious disease
nitrogen concentrations for freshwater should be no more than 1.3-2.2 milligrams per liter and the phosphorus levels should also be low. It is not good to have low levels of dissolved oxygen in water because only organisms such as leeches‚ snails and roundworms can survive while many other invertebrates would die. The pH scale is also used to test water quality. Water with a pH between 6.5-8.5 is considered to be healthy (Riverwatch‚ 2013).There are 3 types of pollution tolerance among invertebrates. A
Premium Water Water pollution Oxygen
habitat for rodents‚ breeding points of flies and growth of micro-organisms. According to some researchers‚ grilled foods suchlike betamax‚ isaw‚ IUD‚ and adidas can cause trikinosis or trichiniasis trikinisis‚ a parasitic disease caused by the roundworm Trichinella spiralis. When the larvae are released‚ reach maturity‚ and mate in the
Premium Nutrition Street food Causality
Soil-transmitted helminth infections like ascariasis are diseases of poverty. They contribute to impairment of cognitive performances and growth of children. (Cabrera B. and De Leon B.‚ 2004). Ascariasis is a disease of humans caused by the parasitic roundworm Ascaris lumbricoides. It is prevalent in tropical and sub-tropical regions where hygiene is poor. Ascariasis is most common in tropical areas with poor sanitation and in Asia‚ where farmers use human feces as fertilizer. In the United States‚ it’s
Premium Disease Epidemiology Ascariasis
Rags transformed into gowns‚ pumpkins into carriages‚ and mice into chauffeurs—people often associate magic with impossible grandeur and grand impossibilities. They associate it with fantasy. But magic lingers. It hides in the unexpected: in my phone that never breaks (despite being run over‚ submerged‚ and frozen)‚ in my friend’s dog that always manages to raid the refrigerator‚ and in my uncle who always parallel parks in two moves. People who don’t believe in magic have yet to encounter it. They
Premium English-language films The Lord of the Rings Bilbo Baggins