Answer the following question given this paragraph: 29.5 Birds Birds are endothermic, meaning they produce their own body heat and regulate their internal temperature independently of the external temperature. Feathers not only act as insulation but also allow for flight, providing lift with secondary feathers and thrust with primary feathers. Pneumatic bones are bones that are hollow rather than filled with tissue, containing air spaces that are sometimes connected to air sacs. Airflow through bird lungs travels in one direction, creating a crosscurrent exchange with the blood. Birds are diapsids and belong to a group called the archosaurs. Birds are thought to have evolved from theropod dinosaurs. The oldest known fossil of a bird is that of Archaeopteryx, which is from the Jurassic period. Modern birds are now classified into two groups, Paleognathae and Neognathae. Q: What is the technical term for species that produce their own body heat and regulate their internal temperature independently of the outside temperature? Choices: - hydrostatic - Phototrophic - osmotic - endothermic A:
endothermic
Answer the following question given this paragraph: Like acetic acid, pentanoic acid is a carboxylic acid. Unlike acetic acid, however, the alkyl group is rather large, consisting of a 4-carbon chain as in butanol. As with butanol, the nonpolar character of the alkyl group is likely to be as important as the polar character of the carboxylic acid group, making it unlikely that pentanoic. Q: Like acetic acid, pentanoic acid is what kind of acid? Choices: - hydroxyl - carbonic - amino - carboxylic A:
carboxylic
Q: Answer the following question given this paragraph: Lobsters are one kind of arthropod food source. Q: Lobsters are what kind of food source? Choices: - combination - mollusc - sauropod - arthropod A:
A: arthropod
Question: Answer the following question given this paragraph: the activity of an organism depends on the total activity of independent cells,. Q: What does the activity of an organism depend on the totality of? Choices: - interdependence - adaptations - chemical attraction - independent cells A:
Answer: independent cells
*Question*
Answer the following question given this paragraph: In self-pollination , the egg is fertilized by the pollen of the same flower. Q: What is the process by which the egg is fertilized by the pollen of the same flower? Choices: - self formation - self realization - self condensation - self pollination A:
**Answer**
self pollination
(Question)
Answer the following question given this paragraph: Ohm's law may be easier to understand with an analogy. Current flowing through a wire is like water flowing through a hose. Increasing voltage with a higher-volt battery increases the current. This is like opening the tap wider so more water flows through the hose. Increasing resistance reduces the current. This is like stepping on the hose so less water can flow through it. If you still aren't sure about the relationships among current, voltage, and resistance, watch the video at this URL: http://www. youtube. com/watch?v=KvVTh3ak5dQ. Q: Increasing voltage with a higher-volt battery does what to the current? Choices: - blocks it - stops it - decreases it - increases it A:
(Answer)
increases it