Porter

porter A membrane protein that functions to transport substances into and out of the cell...

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..

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

Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..

DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..

Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

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