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National Park Quiz 83: Reproduction

Let's see how much you know about the intricate business of passing along genes in our national parks. Answers are at the end. If we catch you peeking, we'll make you write on the whiteboard 100 times: "Bacterial conjugation, which is sometime erroneously characterized as the bacterial equivalent of sexual reproduction, cannot succeed unless the donor bacterium hosts a plasmid, transposon, or similar genetic element that is conjugative or mobilizable."

Republicans, Democrats Differ Over Whether National Park Designations Should Block Energy Projects

When the Bush administration late in 2008 tried to auction energy leases near national parks in Utah, there was an outcry by many who considered siting oil and gas exploration projects next to parks was anathema. The Obama administration quickly reversed the decision, but the debate over whether to locate energy projects next to parks continues.

Tamarisk, aka "Salt Cedar," A Thirsty Scourge Of Western National Parks

The showy tamarisk tree, aka "Saltcedar," long has been reviled as a thirsty scourge of Western national park riparian areas. But new research shows it's not any thirstier than some native species. However, tamarisk isn't valued as highly as cottonwoods and willows by some bird species, the studies say.

Researchers Exploring Cave Dwellers From Bandelier National Monument's Long Ago Past

The American Southwest is honeycombed with ruins from long-past civilizations. Mesa Verde National Park and Canyon de Chelly National Monument are well-known for their cliff dwellings, while at Bandelier National Monument the sandstone walls are pocked with "cavates" used as shelter centuries ago.

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