How do kangaroos have babies? Obviously, a kangaroo of this size would not be able to survive the harsh conditions of the Outback, or really even a trip to the mall, so the mother guides her young by licking a path from cloaca to pouch. (The cloaca is an all-purpose orifice through which kangaroos have […]
What force in flight counteracts lift?
What force in flight counteracts lift? Lift opposes gravity and thrust opposes drag . Drag and gravity are forces that act on anything lifted from the earth and moved through the air. Thrust and lift are artificially created forces used to overcome the forces of nature and enable an airplane to fly. How do airplanes […]
What are mammalian cell types?
What are mammalian cell types? Mammalian cells are cells that are derived or isolated from tissue of a mammal. In this experiment, students are introduced to four mammalian cell types: fibroblasts, epithelial cells, lymphocytes and macrophages. Lymphocytes are found within the blood. What are the 4 cell types? The Four Main Types of Cells Epithelial […]
Does the Denver Mint still make pennies?
Does the Denver Mint still make pennies? The Denver Mint is a branch of the United States Mint that struck its first coins on February 1, 1906. The mint is still operating and producing coins for circulation, as well as mint sets and commemorative coins…. Denver Mint NRHP reference No. 72000270 CSRHP No. 5DV.164 Added […]
Is the Plastic Beach real?
Is the Plastic Beach real? In the video, it’s revealed that Damon Albarn and Jamie Hewlett hired a team of miniature designers that created the “real-life” scaled replica of the island used in most of the videos and album art for the Plastic Beach album. Was the Plastic Beach model destroyed? Throughout the video, Gorillaz […]
What were Archbishop Romero and other activists fighting against?
What were Archbishop Romero and other activists fighting against? Romero ran a church commission that investigated human rights abuses, and he openly denounced the violence of leftist and rightist forces alike. During Mass, he named victims of murder and those who disappeared. Who killed the Jesuits in El Salvador? In the early morning of 16 […]
What is the closest correct temperature for cooking a hamburger?
What is the closest correct temperature for cooking a hamburger? 160°F. What temp kills bacteria in ground beef? 160°F Why must ground beef be cooked at 155 degrees? For example, cooking raw, ground meat to at least 155 degrees Fahrenheit for 15 seconds can kill bacteria, such as E. coli, that is potentially in the […]
How did the US Supreme Court uphold the Espionage Act in Schenck v United States?
How did the US Supreme Court uphold the Espionage Act in Schenck v United States? The Court upheld the Espionage Act, ruling that the speech creating a “clear and present danger” was not protected by the First Amendment. The Court took the context of wartime into consideration in its opinion. What did the Supreme Court […]
Why does my AC come on when I turn on my defrost?
What happens after a fire destroys a forest?
What happens after a fire destroys a forest? Burning off the dead plant life, or weedy plants, increases sunlight to the forest floor. This often causes a flush of vegetation in response to the increase in light reaching the soil and available to plants. Forests recover from fires through germination of seed stored in the […]