Pulvinus

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

The arthropods were assumed to be the first taxon of species to possess jointed limbs and exoskeleton, exhibit more adva..

Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

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