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Cells are the structural and functional units of all living organisms. Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are...

http://www.tvlesson.com/video/27022_animal-cell-.html

Have you ever imagined becoming a biologist? If you enjoyed making scientific theories, then this could be a career for you. It is considered to be a rewarding and challenging career. They are the...

http://www.tvlesson.com/video/41973_career-search-biologist.html

Cilia and flagella are motile cellular appendages found in most microorganisms and animals, but not in higher plants. In multicellular organisms, cilia function to move a cell or group of cells or...

http://www.tvlesson.com/video/27023_flagella-amp-cilia-.html

A vector is an organism that can transmit a pathogen without being affected by it. Today, it has expanded to include organisms like fire ants.

http://www.tvlesson.com/video/3561_what-is-vector-control.html

NASA scientis Chris Mckay has brough a Roman spectrometer, a new device that NASA has used for more space exploration. Continuously, scientist stirve hard to know and understand things around us....

http://www.tvlesson.com/video/15942_how-to-discover-the-world-around-us.html

Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes (including single-celled organisms) that reproduce sexually. A few eukaryotes, notably the Bdelloid rotifers,...

http://www.tvlesson.com/video/27007_meiosis-.html

What is the work of a microbiologist? Microbiologist is a professional who explore and study organisms that are not visible with the naked eye. The works of microbiologist plays an essential role...

http://www.tvlesson.com/video/41738_career-search-microbiologist.html

Want to know what a DNA is? Learn it all in this clip! Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions used in the development and functioning of all known...

http://www.tvlesson.com/video/32822_what-is-dna.html

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms and some viruses. The main role of DNA...

http://www.tvlesson.com/video/27021_dna-structure-.html

Of all the molecules found in living organisms, proteins are the most important. They are used to support the skeleton, control senses, move muscles, digest food, defend against infections and...

http://www.tvlesson.com/video/32865_biology-protein-shapes.html