Science Essays

Bilirubin, the principal pigment in bile, is derived from the breakdown of hemoglobin when aged red blood cells are phagocytized by the reticuloendothelial system, primarily in the spleen, liver and bone marrow. About 80% of bilirubin formed daily comes from the degradation of hemoglobin. The remainder comes from destruction of heme-containing proteins and catabolism of […]

Lichens are a type of mutualistic symbiosis that involve a fungus and a cyanobacterium or alga. This mutualism benefits both organisms. The photobiont, which is the cyanobacterium or alga, has chlorophyll and is capable of photosynthesis. This process allows for the production of carbohydrates that are used by both the fungi and the photobiont. The […]

A “Virtual” Child (abstract) This is the life story of Santiago, a professional musician. In the text below, I will discuss the events, relevant facts, and chronicles that shaped Santiago’s life. Additionally, I will address the major influences and significant issues from each stage of his life and history. The text will analyze the life […]

Introduction Neurons are the cells that receive and transmit electrical signals. The ability of the neuron to conduct these impulses is because of an electrochemical voltage across the plasma membrane of that neuron. An action potential is an all or nothing response to a stimulus along a single axon. A compound action potential is a […]

Termites, which were previously categorized as order Isoptera in the taxonomic rank, are now recognized as the epifamily Termitoidae within the cockroach order Blattodea. Despite being commonly referred to as “white ants,” termites are not closely related to ants. Similar to ants, certain bees, and wasps, which belong to the separate order Hymenoptera, termites distribute […]

The process of prenatal development occurs in three main stages. The first two weeks after conception are known as the germinal stage; the third through the eighth week are known as the embryonic period; and the time from the ninth week until birth is known as the fetal period. The germinal stage begins with conception, […]

Cinnamon, one of the oldest known spices globally, was highly prized in ancient times and deemed more valuable than gold. It is derived from the brown bark of cinnamon trees and can be obtained as a dried tubular form called a quill or as ground powder. There are two varieties of cinnamon: Chinese and Ceylon. […]

Introduction Prenatal testing is the identification of genetic disorders, diseases, or abnormalities in a developing fetus. It focuses on conditions such as Down syndrome, Trisomy 18, and open neural tube defects. The objective of our investigation is to explore the societal impact of prenatal testing, which is a result of its development through scientific thought […]

Small Intestinal Obstruction Client’s Data: Name: Mr. X Age: 40 Gender: male Address: Bagong Tuklas, Brgy. San Agustin, Novaliches Quezon City Civil Status: Married Chief Complaint: Abdominal Pain & Constipation Admitting Diagnosis: Small Intestinal Obstruction Final Diagnosis: Hiatal Hernia Family Health: Illness History It was revealed in the diagram that on father side, Mr. T’s […]

Mark Twain dismissed the importance of profitability for humans in his opposition to vivisection and instead emphasized the suffering endured by non-consenting animals. According to Alex Gordon’s book “Animal rights: The argument of animal testing” published in 2005, Charles Darwin first utilized animal testing in 1859 to gain knowledge about the human body. Since then, […]

Introduction Albinism is the state or condition being an albino. Also it is often caused by the absence of tyrosinase, an enzyme essential for the production of cellular pigment. Albinism is a form of hypopigmentary congenital disorder, characterized by a partial hypomelanism or total lack of melanin pigment in the eyes, skin, and hair. Albinism […]

Campbell’s AP Biology Notes Chapter 48: Nervous Systems Command and Control Center The human brain contains an estimated 100 billion nerve cells, or neurons Each neuron my communicate with thousands of other neurons Functional magnetic resonance imaging (fMRI) is a technology that can reconstruct a 3-D map of brain activity The results of brain imaging […]

The lymphatic system consists of lymph vessels, lymph nodes, and lymph. These tissues and organs create a network that transports lymph throughout the body, as opposed to blood vessels. Lymph contains a high concentration of white blood cells, which assist in the body’s defense against germs. One of its main purposes is to act as […]

The wasp, or Vessels Vulgarism, as it is known scientifically, is an insect. It’s color is black and yellow; it has a length of one-half inches and a wing span of 0. 0079 inches. As all insects, the wasp has bilateral symmetry, an exoskeleton, two eyes, six legs, and three body parts. It has two […]

Biology Assignment Transpiration rates between Exotic vs.. Native plants In this investigation we will be looking at transpiration. The topic we will be focusing on is transpiration rates between native plants as well as exotic plants. We will be experimenting with 2 native plants as well as 2 exotic plants. The reason we are experimenting […]

Molds are species of fungi. There are many different kinds of molds, some of which are specially adapted to grow in particular environments or on particular surfaces. Unlike plants, molds cannot produce their own food, so they need an external source of energy and nutrients. Molds (and mildew) are fungi. Fungi are neither plant nor […]

Explain what happens to the energy reaching the producers that is not converted to growth. ? (iii) Name one decomposer. (iv)State two ways in which energy is transferred from primary consumers to decomposer at C. 1 . (b) Suggest why the percentage energy transfer between producers and primary consumers at A is less than that […]

The scientific method lab essay conducted by Ashley Lewis B investigated the movement patterns of Brattles leach’, a sea slug, over a 10-day period. The researchers observed that initially, the slugs would be near each other, then they would move apart and eventually come closer again. There are various possible reasons for these observations. One […]

Introduction Disorders of development of teeth may be prenatal or postnatal in origin and may be inherited or acquired. Their recognition and evaluation requires a thorough knowledge and evaluation of the normal chronology of the human dentition and of the normal development and structure of the teeth. Disorders of development of teeth of teeth may […]

Did water move into the cells or out of the cells while they were surrounded by hypotonic solution? Water moved into all of the cells while they were surrounded by hypotonic solution. In which direction did the water move through the cell membrane when the cells were surrounded by the hypertonic solution? The direction that […]

Symptoms of jaundice include extreme weakness, headache, fever, loss of appetite, severe constipation, nausea, and yellow discoloration of the eyes, tongue, skin, and urine. Additionally, patients may experience a dull pain in the liver region and intense itching if they have obstructive jaundice. Jaundice occurs when there is an obstruction in the bile ducts that […]

Arabidopsis thaliana, also known as ‘mouse ear cress’, is a small weed classified as a dicotyledonous angiosperm. It possesses two leaves in the mature embryo and its seeds are enclosed within an ovary in the flower. Similar to other plants, Arabidopsis thaliana is autotrophic and can produce its own food through photosynthesis. It remains immobile […]