*Question*
Answer the following question given this paragraph: Q: The earliest stages of spermatogenesis occur closest to the lumen of the what? Choices: - interstitial tubules - viviparous tubules - epithelium tubules - seminiferous tubules A:
**Answer**
seminiferous tubules

*Question*
Answer the following question given this paragraph: Metallic character refers to the level of reactivity of a metal. Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies. Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities. By following the trend summary in the figure below, you can see that the most reactive metals would reside in the lower left portion of the periodic table. The most reactive metal is cesium, which is not found in nature as a free element. It reacts explosively with water and will ignite spontaneously in air. Francium is below cesium in the alkali metal group, but is so rare that most of its properties have never been observed. Q: Do metals tend to gain electrons or lose electrons in chemical reactions? Choices: - develop electrons - same number of electrons - gain electrons - lose electrons A:
**Answer**
lose electrons

*Question*
Answer the following question given this paragraph: Pivot Joint. The joint at which the radius and ulna meet is a pivot joint. Movement at this joint allows you to flip your palm over without moving your elbow joint. Q: The joint that lies between the radius and the ulna is what kind of joint? Choices: - hinge joint - socket joint - shaft joint - pivot joint A:
**Answer**
pivot joint

*Question*
Answer the following question given this paragraph: Note that Earth's axis of rotation is tilted. The axis is not perpendicular to the plane of the ecliptic. This plane is the one that solar system bodies are mostly lined up in. Q: What scale measures acidity? Choices: - frequency scale - richter scale - salinity scale - ph scale A:
**Answer**
ph scale