Ever since I was old enough to talk, I have always loved animals and have always loved learning about them. Even though I have a strong love for animals, I have always wanted to be a doctor. Until now. I recently discovered the career of a Marine Biologist. A marine Biologist is someone who studies … Read more
A key concept in evolutionary biology is that divergent selective regime will often generate and maintain some type of phenotypic diversity (Langerhans et al. 2003). This divergent selection can lead to differences in phenotypic expression either by a genetic differentiation or phenotypic plasticity (Levins, 1968; West-Eberhard, 1989: Robinson and Wilson, 1994; Orr and Smith, 1998; … Read more
Callosobruchus maculatus is viewed as an economically relevant pest for multiple pulses, including grains such as lentils, chickpeas, and cowpeas, black-eyed beans, or Vigna unguiculata. These grains serve as primary sources of protein those who live in tropical and subtropical Asia and Africa, and when C. maculatus lay eggs into grains, the grains can no … Read more
Bacteria are microbial organisms which are present in various environments. Many bacteria are good and help humans synthesize materials and assist in biological processes, such as digestion. However, some bacteria can cause harmful diseases. When harmful bacteria infects the body, people take antibiotics in order to suppress bacteria. Different antibiotics have different ways they suppress … Read more
Receptors and Ligands: Examining the effects of pharmaceutical compounds on Daphnia magna physiology Abstract The following study was conducted in order to determine the effects of four different pharmaceutical compounds on the heart rate of Daphnia specimens. After basal heart rate was observed and computed, four different solutions each containing either an adrenergic, muscarinic, or … Read more
Cranial nerves are part of the peripheral nervous system and are directly in contact with the brain. There are 12 pairs of cranial nerves and they can be seen on the ventral surface of the brain. Each nerve has got a specific name that is either related to its appearance or function. They have got … Read more
This experiment investigated the kinetics of the enzyme glycogen phosphorylase b which is important to metabolism. AMP is an allosteric activator of the enzyme because it converts glycogen phosphorylase b from its T state to the R state which is the active form. Caffeine is an inhibitor because it binds the nucleoside inhibitor site. When … Read more
All living organisms respire and they need energy to carry out their life processes in order for organisms to survive and produce. The gases involved in cellular respiration is oxygen and carbon dioxide. The process of cellular respiration is releasing energy from sugars using oxygen and the product is carbon dioxide and water and in … Read more
There is no doubt that Charles Darwin made many helpful scientific contributions in his lifetime. In the book, “The Man and His Influence”, Peter J. Bowler reveals Darwin’s accomplishments through a series of organized chapters and subchapters that thoroughly explain how Darwin was able to make these remarkable discoveries. Readers will be able to grasp … Read more
Genesis 6:7-8 reads, “7 So the Lord said, ‘I will wipe from the face of the earth the human race I have created—and with them the animals, the birds and the creatures that move along the ground—for I regret that I have made them. ’ 8 But Noah found favor in the eyes of the … Read more
To what extent does varying the Sodium Chloride concentration impact the mass change of Solanum tuberosum cubes? Katie Hynek 12/11/15 Personal Engagement: Every Thanksgiving my aunt and grandma switch off making mashed potatoes and every year they use the same recipe. This year it was my aunt’s turn and when we went to eat the … Read more
In a capillary network, two opposing forces mainly determine the movement of fluid between the blood and tissue fluid: (1) the hydrostatic pressure difference and (2) the osmotic potential difference between the blood and the tissue fluid. In the part of the capillary network near the arterial end, blood pressure is much higher than that … Read more
Out of all the species that have ever existed since the beginning of time, 98% of them are extinct (Facts). There are an estimated 5-10 million species that exist currently and only 1. 5 million have been identified (Sherry, 2). Scientists classify species into six different groups: plants, animals, insects, algae, fungi, and microorganisms (Todays … Read more
The common name is the African Elephant, the scientific name is Loxodonta Africana, the phylum is Vertebrata, the class is Mammalia, the order is Proboscidea, and the family is Elephantidae. The Closest Relatives to the African Elephant are: the Asian Elephant, mammoths, primitive proboscidean (mastodons), sea cows, and hyraxes. Scientists believe that the African Elephant … Read more
Do you often wonder what makes someone attracted to you or what makes you attracted to that other person? Sometimes you can look at the person and not even be attracted to their looks, but you feel compelled to talk to them or just contact them in any form. These urges could be induced by … Read more
The Grey Tree Frog is about two inches in length. Its head is short and broad and its body corpulent (Dickerson, 1969). With a white belly, white rectangular spot under both of its eyes, yellowish orange markings on the inside of the hide legs and black blotches including one that looks like an irregular shaped … Read more
Organisms have to adapt to their environment or they will become extinct. Organisms also have to adapt to their environment or become prey to predators. If they become prey and are eaten they can’t reproduce and pass on their traits. Some organisms adapt to their environment by reproducing a lot. Also, organisms adapt to their … Read more
In recent years it has become clear that some environmental chemicals can cause risks to the developing embryo and fetus. Evaluating the developmental toxicity of environmental chemicals is now a prominent public health concern. The suspected association between TCE and congenital cardiac malformations warrants special attention because TCE is a common drinking water contaminant that … Read more
Imagine going to the doctor for a simple check up. Sure you’ve had some minor problems- indigestion, lack of energy, weight loss, and a bit of gas- but that’s not out of the ordinary…. or is it? In most cases you would be correct… but today is your unlucky day. The doctor has just informed … Read more
The cell theory, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwina€™s theory of evolution (1859), Mendela€™s laws … Read more
History: Microbiology and Disease Change BY cyclone 997 c) In what ways did the understanding of the treatment of disease change in the years 1860-1945? The treatment of disease changed dramatically in the years 1860-1845 due to the changes of how people understand it, how each discovery such as Pasture’s opens new doors, leading to … Read more
Nucleus- the brain or control center of the cell. The Nucleus, a membrane-bound structure of a cell, plays two crucial roles in controlling the cell. The nucleus carries the cell’s genetic information that determines if the organism will develop, for instance, into a tree or a human; and it directs most cell activities including growth, … Read more
