Answer the following question given this paragraph: Longshore drift can erode the sediment from a beach. To keep this from happening, people may build a series of groins. A groin is wall of rocks or concrete that juts out into the ocean perpendicular to the shore. It stops waves from moving right along the beach. This stops the sand on the upcurrent side and reduces beach erosion. You can see how groins work in Figure below . Q: A wall of rocks or concrete that juts out into the ocean perpendicular to the shore is called? Choices: - shield - rib - fault - groin A:
groin
Answer the following question given this paragraph: Pulmonary gas exchange is the exchange of gases between inhaled air and the blood. It occurs in the alveoli of the lungs. Alveoli (singular, alveolus) are grape-like clusters surrounded by networks of thin-walled pulmonary capillaries. After you inhale, there is a greater concentration of oxygen in the alveoli than in the blood of the pulmonary capillaries, so oxygen diffuses from the alveoli into the blood across the capillaries (see Figure below ). Carbon dioxide, in contrast, is more concentrated in the blood of the pulmonary capillaries than in the alveoli, so it diffuses in the opposite direction. Q: In what part of the lungs is pulmonary gas exchanged? Choices: - bronchioles - trachea - bronchi - alveoli A:
alveoli
Q: Answer the following question given this paragraph: Figure 7.3 In this illustration of the effects of crossing over, the blue chromosome came from the individual's father and the red chromosome came from the individual's mother. Crossover occurs between non-sister chromatids of homologous chromosomes. The result is an exchange of genetic material between homologous chromosomes. The chromosomes that have a mixture of maternal and paternal sequence are called recombinant and the chromosomes that are completely paternal or maternal are called non-recombinant. Q: The chromosomes that have a mixture of maternal and paternal sequence are called what? Choices: - antibodies - gene - DNA - recombinant A:
A: recombinant
Question: Answer the following question given this paragraph: Q: What kind of tests may detect substances associated with particular disorders? Choices: - hormonal - electrical - genetic - biochemical A:
Answer: biochemical
*Question*
Answer the following question given this paragraph: Carbohydrates include sugars, starches, and fiber. Sugars and starches are used by the body for energy. One gram of sugar or starch provides 4 Calories of energy. Fiber doesn't provide energy, but it is needed for other uses. At age 13 years, you need about 130 grams of carbohydrates a day. Figure below shows good food sources of each type. Q: How many calories of energy does one gram of sugar or starch provide? Choices: - 5 - 3 - 10 - 4 A:
**Answer**
4
Answer the following question given this paragraph: Many other salts are important in the body. For example, bile salts produced by the liver help break apart dietary fats, and calcium phosphate salts form the mineral portion of teeth and bones. Q: Bile salts produced by the liver assist in breaking apart what kind of fats? Choices: - soluble - Sugar - carbohydrates - dietary A:
dietary