Staphylococcus vs Streptococcus Streptococcus and Staphylococcus are two bacterial genera, which are gram-positive and have the same spherical shaped cells called cocci. Even though their cells are in similar shape, the arrangements of the cells between the two genera have prominent differences. This is due to the axial difference of binary fusion. Streptococcus and […]
Archives for December 2013
Difference Between Upper and Lower Motor Neuron
Upper vs Lower Motor Neuron The conduction of motor and sensory nerve impulses to and from the brain is basically carried out by sensory (ascending) and motor (descending) tracts, and pathways in the spinal cord. The names of the pathways are given according to their position in the white matter, and their beginning and […]
Difference Between Gonads and Gametes
Gonads vs Gametes Gonads and gametes are two most important components of the reproductive system in organisms. These components are involved in sexual reproduction, which occurs via the fusion of two gametes from two different parents and has the end result of genetically unequal offspring. Sexual reproduction, basically, requires the production of gametes in […]
Difference Between Uvula and Epiglottis
Uvula vs Epiglottis Uvula and epiglottis are important parts, which contribute to carry out functions in both respiratory and digestive system, in mammals. Unlike in the other animals, the adult humans have a space between uvula and epiglottis. However, the newborn human has an interlocking uvula and epiglottis, where they touch each other like […]
Difference Between Systole and Diastole
The key difference between systole and diastole is that systole refers to the contraction of atria and ventricles, forcing blood to enter into the aorta and pulmonary trunk, while diastole refers to the relaxation of atria and ventricles, allowing the filling of heart chambers with blood. The cardiac cycle is the time period that begins […]
Difference Between Collagen and Elastin
Collagen vs Elastin Connective tissues are important for binding and connecting other tissues within the body. They also provide strength, support, and shape to the tissues. The connective tissue is a system in which cells are scattered throughout an extracellular matrix. In addition to cells, the insoluble protein fibers are also embedded in the […]
Difference Between Primary and Secondary Lymphoid Organs
Primary vs Secondary Lymphoid Organs The human immune system is an important system, which facilitates major defensive actions against the foreign particles and microorganisms. The tissue aggregates where leukocytes mature, differentiate, and proliferate are called the lymphoid organs. They are mainly composed of epithelial cells and stromal cells, arranged either into organs or accumulation […]
Difference Between Male and Female Skull
The key difference between male and female skull is that male skull is heavier due to the presence of thicker bones while female skull is lighter due to the presence of thinner bones. The human skull is an important part of the skeletal system, which basically provides sites for facial muscle attachments and forms a cranial […]
Difference Between Protozoa and Metazoa
Protozoa vs Metazoa Every organism in the world has its own biological characteristics, and they are not exactly alike. Even two organisms belonging to one species may have different characteristic features. Since there are a large number of different organisms exist on earth, they can be classified into smaller groups, and this makes easier […]
Difference Between Adenocarcinoma and Squamous Cell Carcinoma
Adenocarcinoma vs Squamous Cell Carcinoma Adenocarcinoma and squamous cell carcinoma are two types of malignant conditions. These may present similarly but are different at the cellular level. Some adenocarcinomas are highly invasive while others are not. It is not so with squamous cell carcinoma. Both cancers are commonly found on tissue surfaces. Both are […]