nodal point One of two point’s in a compound optical system so related that a ray directed toward the first point will appear to have passed through the second point parallel to its original direction. Synonym: axial point...
Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..
Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..
This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..
Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..
