Tooth enamel

Australopithecus sediba existed 1.977 – 1.98 million years ago. The characteristics of this species vary greatly from modern humans, but certain similarities with tooth traits, the pelvis bone, and a broad lower chest resemble those of modern-man. Au. Sediba is a very good candidate for the ancestor to the Homo genus because of many of the similarities found in its skeletal structure. Smaller premolars, molars, as…

Tobacco contains substances that will stain your teeth. So much for first impressions. Dentists now have new ways to bleach tooth enamel, but after a period of time, the stains become too deep to remove. Heavy smokers have permanently yellowed teeth, and those are the lucky ones who keep their teeth. To make things worse, smokers sometimes have a problem with the bones that support…

Mariam to chew them until two of her molars broke, ”Now you know what your rice tastes like. Now you know what you you’ve given me in this marriage. Bad food, and nothing else” (Hosseini, page 103). In my opinion, this excerpt is one of symbolism. Tooth enamel is a very strong substance, and the fact that Rasheed breaks Mariam’s teeth is a metaphor for how, through abuse, he breaks her spirit as…

Eating disorder are very serious, it affects many teens over the past years. A person with an eating disorder tend to have a series of signs and symptoms; anorexia, bulimia and binging. Anorexia also known as “Anorexia Nervosa” or self-starvation, this type of disorder is extremely common in teens; women and men. This type of disorder causes people to be more concerned in what they are eating and how much of it. Anorexia in people tend to change the way you look; for example, thinning of the…

Below is the summary of the hair results from the Sasquatch Genome Study: One hundred eleven samples of blood, tissue, hair, and other types of specimens were studied, characterized and hypothesized to be obtained from elusive hominins in North America commonly referred to as Sasquatch. DNA was extracted and purified from a subset of these samples that survived rigorous screening for wildlife species identification. Mitochondrial DNA (mtDNA) sequencing, specific genetic loci sequencing,…

Bulimia Before and After Bulimia as an emotional disorder involves an obsessive desire to lose weight, and the distortion of body image, in which episodes of extreme overeating are followed by self-induced vomiting, fasting, or purging, followed by depression. Bulimia as an eating disorder is defined as consuming a large quantity of food in a short period of time, followed by feelings of shame, and/or guilt. Regardless of whether it is an emotional disorder, or an eating disorder, bulimia before…

The objective of this lab was to isolate and identify an unknown Gram positive and Gram negative bacteria through the use of various microbiological techniques. The identification of the genus and species for the unknown culture should be obtained based on the characteristics for Gram positive and Gram negative bacteria. Bacteria are prokaryotic microorganisms that lack a nucleus and therefore all its genetic information is stored in the cytoplasm of the cell. The bacterial cell envelope…

INTRODUCTION CLASS : B.S-VIII CHEMISTRY SUBJECT: ENVIRONMENTAL ANALYTICAL CHEMISTRY TOPIC: SOFT DRINKS & ITS HARMFUL EFFECTS SUBMITTED TO: DR. SANA MUSTAFA MADE BY: HAFIZ MANSOOR HUSSAIN 11/05/2014 HAFIZ MANSOOR HUSSAIN 2 3. WHAT ARE SOFT DRINKS ? ? ? ? ? ? ? Soft drink is also known as club soda, soda water, sparkling water, carbonated water & fizzy water. It is water into which carbon di oxide gas under pressure has been dissolve, a process that cause the water to become effervescent. and…

promote good oral health and so people are aware that these types of foods and drinks should be consumed at a minimal level. Another weakness was the lack of informing the audience on how drugs can cause damage to oral health, like deterioration of tooth enamel due to a high amount of acidity in the mouth that comes from substance…

How Carbon Sources Affect Biofilm Growth Yeast is single celled and eukaryotic. Biofilms of bacteria can adhere to a device and allow them to withstand environmental changes, which prevents antibiotics from penetrating the cells to kill them. When shifting from a planktonic state to a biofilm, the cells change its proteins. Biofilms produce FLO genes, which code for glycoproteins, cause the yeast to stick together. This is what helps the biofilm form. Once it is forms, the species within the…