Answer the following question given this paragraph: A mineral is an inorganic substance. It was not made by living organisms. Organic substances contain carbon. Some types of organic substances are proteins, carbohydrates, and oils. Everything else is inorganic. In a few cases, living organisms make inorganic materials. The calcium carbonate shells made by marine animals are inorganic. Q: Organic substances, including proteins, carbohydrates, and oils, contain what element? Choices: - oxygen - acid - iron - carbon A:
carbon
Answer the following question given this paragraph: Q: In what route do water and solutes move along the continuum of cytosol? Choices: - hydrophylic - hydrophobic - nonvascular - symplastic A:
symplastic
Q: Answer the following question given this paragraph: Q: Humans building communities to make survival easier is an example of humans as a species changing their what? Choices: - climate - instinctive behavior - evolution - environment A:
A: environment
Question: Answer the following question given this paragraph: Did you ever see workers sandblasting a building to clean it? Sand is blown onto the surface to scour away dirt and debris. Wind-blown sand has the same effect. It scours and polishes rocks and other surfaces. Wind-blown sand may carve rocks into interesting shapes. You can see an example in Figure below . This form of erosion is called abrasion. It occurs any time rough sediments are blown or dragged over surfaces. Can you think of other ways abrasion might occur?. Q: Wind blown sand contributes to what type of erosion? Choices: - vegetation - sedimentary - filtration - abrasion A:
Answer: abrasion
*Question*
Answer the following question given this paragraph: The two smallest carboxylic acids are formic acid (found in the stingers of ants) and acetic acid (found in vinegar). Many organic compounds are considerably more complex than the examples described here. Many compounds, such as cholesterol discussed in the chapter-opening essay, contain more than one functional group. The formal names can also be quite complex. In http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gobch12through http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gob-ch15, we will examine the characteristics and chemistry of other important organic compounds and functional groups. Q: The two smallest carboxylic acids are formic acid and what else? Choices: - carbonates acid - ethylene acid - ascorbic acid - acetic acid A:
**Answer**
acetic acid
Answer the following question given this paragraph: years or more. During this time, a girl's height can increase 3 inches a year. The next step in puberty is menarche, the start of menstruation. In boys, the growth of the testes is typically the first physical sign of the beginning of puberty, which is followed by growth and pigmentation of the scrotum and growth of the penis. The next step is the growth of hair, including armpit, pubic, chest, and facial hair. Testosterone stimulates the growth of the larynx and thickening and lengthening of the vocal folds, which causes the voice to drop in pitch. The first fertile ejaculations typically appear at approximately 15 years of age, but this age can vary widely across individual boys. Unlike the early growth spurt observed in females, the male growth spurt occurs toward the end of puberty, at approximately age 11 to 13, and a boy's height can increase as much as 4 inches a year. In some males, pubertal development can continue through the early 20s. Q: In boys, what hormone stimulates the growth of the larynx and thickening and lengthening of the vocal folds, which causes the voice to drop in pitch during puberty? Choices: - Sexual - Endocrine - Petuitary - testosterone A:
testosterone