Definition It refers to a set of processes that people can use to gain knowledge about the world around them, improve that knowledge, and explain why and/or how things happen. By using this method, observations are made, questions are formulated, hypotheses are formed, experiments are conducted, data is analyzed, and a conclusion is reached. In … Read more
Chlorophyll Definition Chlorophyll is a molecule produced by plants, algae and cyanobacteria which aids in the conversion of light energy into chemical bonds. Chlorophyll is known as a pigment, or molecule that reflects some wavelengths of light, while absorbing others. Pigments produce a variety of colors in the plant and animal world. Chlorophyll is a … Read more
Embalming Definition Embalming refers to the preservation of human remains via inhibiting decomposition with the use of chemicals for the purpose of medical education or social reasons (e.g., funeral service). Embalming involves the preservation of the entire human body, and is associated with three goals: Sanitization: Sanitizing the body during embalming involves washing the body … Read more
Law of Independent Assortment Definition The Law of Independent Assortment states that different genes and their alleles are inherited independently within sexually reproducing organisms. During meiosis, chromosomes are separated into multiple gametes. Genes linked on a chromosome can rearrange themselves through the process of crossing-over. Therefore, each gene is inherited independently. Law of Independent … Read more
Cytoskeleton Definition The cytoskeleton is a network of filaments and tubules that extends throughout a cell, through the cytoplasm, which is all of the material within a cell except for the nucleus. It is found in all cells, though the proteins that it is made of vary between organisms. The cytoskeleton supports the cell, gives … Read more
Phosphate Group Definition One phosphorus atom and four oxygen atoms make up the chemical compound phosphate, PO43-. A phosphate group is formed when it attaches to a carbon molecule. In addition to DNA and RNA, adenosine triphosphate (ATP) provides energy to cells. Cell membranes are made up of phospholipids, which are formed by phosphotates. Especially … Read more
The adult human brain contains around 86 billion neurons, the basic functional units of the nervous system. Nerve cells transmit information to other cells after receiving it from other cells. In the human body, there are three different types of nerve cells that detect and interpret information about our external environment before responding to it. … Read more
The organisms that occupy the decomposer level of a biome are essential to life on Earth. They break down dead plant and animal matter so the nutrients in them are recycled back into the ecosystem to be used again. Fungi are the main decomposers in many ecosystems, particularly in forests. One of their main functions … Read more