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African elephants Streptococcus pyogenes mangrove roots, Thailand bald eagle reed frog Venus flytrap initial proposal of DNA structure carbon cycle molecular view of the cell membrane
Find out what an organism is and consider which one is the world's smallest
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Streptococcus pyogenes
life summary
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greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)
Biology Bonanza
Male muscle, man flexing arm, bicep curl.
Facts You Should Know: The Human Body Quiz
Related Questions
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DNA strand illustration art, double helix, deoxyribonucleic acid, genetics
What’s the Difference Between a Gene and an Allele?
Japanese spider crab
10 Animals With Evolutionary Traits Plucked Straight Out of a Nightmare
Spiral Galaxy type Sa-Sb or Sa/Sb in the constellation Virgo. The majestic Sombrero Galaxy Messier 104 (M104) or NGC 4594. The team took six pictures of the galaxy, stitched them together to create the final composite image. Photo from May-June 2003
9 Britannica Articles That Explain the Meaning of Life
Cell transport - illustration of a diffusion of liquid molecules through cell membrane. Phospholibid bilayer
Fast Facts about the Cell Membrane
H1N1 influenza virus particles. Colorized transmission electron micrograph. Surface proteins on surface of the virus particles shown in black. Influenza flu
10 Ways of Looking at Cells
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Person paying with a credit card using a credit card terminal. Cashless payment, credit card reader
What Is a Cashless Society and How Does It Work?
In this aerial photo, structures are damaged and destroyed October 15, 2005 in Balakot, Pakistan. It is estimated that 90% of the city of Balakot was leveled by the earthquake. The death toll in the 7.6 magnitude earthquake that struck northern Pakistan on October 8, 2005 is believed to be 38,000 with at least 1,300 more dead in Indian Kashmir. SEE CONTENT NOTES.
6 of the World’s Deadliest Natural Disasters
Periodical Cicada, Adult, Magicicada spp. Requires 17 years to complete development. Nymph splits its skin, and transforms into an adult. Feeds on sap of tree roots. Northern Illinois Brood. This brood is the largest emergence of cicadas anywhere
Why Do Some Cicadas Appear Only Every 17 Years?
Vietnam War. U.S. President Lyndon B. Johnson awards the Distinguished Service Cross to First Lieutenant Marty A. Hammer, during a visit to military personnel, Cam Ranh Bay, South Vietnam, October 26, 1966. President Johnson
Vietnam War Timeline
Solar eclipse of the sun.
The Sun Was Eaten: 6 Ways Cultures Have Explained Eclipses
African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.
Timeline of the American Civil Rights Movement
Black widow spider
9 of the World’s Deadliest Spiders

The world of microbes, in any case, is more vast, complex, diverse, and widespread than the visible ordinary world of plants and animals. For example, microbes have sexual lives that are different from those of the animal and plant kingdoms. In all organisms composed of prokaryotic cells, DNA that is not complexed with protein (“naked,” or chromonemal, DNA) transfers from a source (such as a plasmid, a virus, a second cell, or even DNA molecules suspended in a solution) to a live prokaryotic cell. The recipient cell at the end of the sex act contains some quantity of its own ...(100 of 16671 words)

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