With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..
This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..