BIOL 120: BIOL 120

Explore the fascinating world of adult tissue regeneration in this video. Discover the origins of new connective tissue cells and unravel the link between embryonic development and tissue differentiation in the human body.

Learn about mouse genetics and the implications of dominant and recessive genes on coat color. We'll use a Punnett square to predict offspring coat patterns by crossing two heterozygous mice. Learn how phenotype ratios like 9 Agouti: 4 white: 3 black help us understand genetic outcomes.

Learn about the critical roles of the epiglottis and glottis in our respiratory and digestive systems. Understand how the epiglottis acts as a protective gate during swallowing, while the glottis facilitates sound production. Together, they ensure safe breathing and swallowing.

Explore the intricate components of the endomembrane system within a cell. Identify which structures belong to this system and which do not, with a specific focus on the unique role of the chloroplast.

Explore the application of parsimony in constructing phylogenetic trees, emphasizing simplicity in scientific explanations and its relation to evolutionary changes. Learn about various options for tree construction and the core concept of choosing the most parsimonious representation

Discover the mechanism of temporal summation in neurobiology. Understand the role of presynaptic and postsynaptic neurons in this process. Dive deep into the distinct mechanisms and their relevance in the nervous system.