Hunger – What Is Hunger Hunger is actually brought on by the brain. The main two hormones that take part in this process are leptin and ghrelin. Leptin is a hormone made by fat cells, and it gets released by fat cells when you eat. It basically…
Transport Across A Membrane Substances move into and out of a cell through several different processes called membrane transport. There are two main processes, passive transport processes and active transport processes. The main difference between the two is that passive processes do not require energy expenditure and active processes…
How Do We Breathe Oxygen I discuss how breathing works, as well as the oxygen carbon dioxide exchange. I also discuss what are alveoli, what are bronchi, what are bronchioles, and what they do during the breathing process. Oxygen is breathed in through the mouth or nasal cavity. In the…
How Many Classes And Class Limits we discussed what a frequency distribution is. Real quick, you have a data set, you break the data down into classes or intervals, column 1 which we will go in depth on in a minute, then you tally up how many data points are in each class,…
Types Of Variables In Statistics Qualitative data consists of variables that can have attributes, labels or nonnumerical units, they can in some cases have numerical units, however, these are often used to label categories or as codes. Quantitative data consists of variables that can have counts, or numerical measurements. Quantitative variables…
What Are Populations And Samples In statistics there are 2 main types of data sets, populations and samples. A population is a complete set of all individuals in a study, or all measurements, counts, outcomes or responses which are of interest. A sample is a subset or a part of a population. So, for…
Structure of the Rib Cage The vertebral column that runs down your back is one of the most complex and intriguing structures in your body as provides protection for the spinal cord, supports the head, gives vertical support for your body and articulates, or forms a joint with the ribs….
Parts of Long Bones The diaphysis is the shaft of a bone, and its function is to be rigid enough to tolerate strong forces and not bend or break. The diaphysis is comprised of compact bone tissue and spongy bone tissue. At each end of the…
Structure of Bones What’s is Structure Of Bones The bones in your body are made up of an extraordinarily complex connective tissue that’s structure matches its function. It is comprised of cells, fibers and extracellular material or matrix. The bones in your body have 3…