Three Domains and Four Kingdoms

If you were to name an animal, a common response would be a lion, tiger, horse, monkeys, etc. Although these words are commonly used in our daily lives, they are not the formal names of organisms. The system by which we name and classify all organisms is called taxonomy. It is based on a system...

Evolution and Natural Selection

Evolution is a highly controversial topic as it is closely related to science and religion issues. It has been a hot debate topic for centuries. I will explain what natural selection means and describe some evidence that supports the theory of evolution.   The theory of evolution by natural selection is the process by which...

Ecology Key Terms

For several weeks, we will be learning ecology - one of my favorite units! So before we get into some challenging concepts, I would like to let you know of the key terms that will be discussed. That way, you can familiarize yourself with the subject to help your understanding. The key vocabulary and their...

Requirements of Natural Selection

Natural selection is the process by which the organisms with adaptations survive and inherit their characteristics to the next generation. However, natural selection does not happen all the time. There are several requirements of natural selection - genetic variation, overproduction, the struggle for existence, and survival of the fittest. Genetic Variation   Species have a...

Evolution Vocabulary

Evolution is the change in the heritable characteristics of biological populations over generations. There are several vocabularies related to evolution, and I organized some essential words and their definitions.   Word Definition Species A group of similar organisms that can breed and produce fertile offspring Population Group of individuals of the same species that live...