According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..
Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..
Plants, like animals, produce hormones to regulate plant activities, including growth. They need these hormones to respo..
