Answer the following question given this paragraph: Gastric Secretion The secretion of gastric juice is controlled by both nerves and hormones. Stimuli in the brain, stomach, and small intestine activate or inhibit gastric juice production. This is why the three phases of gastric secretion are called the cephalic, gastric, and intestinal phases (Figure 23.17). However, once gastric secretion begins, all three phases can occur simultaneously. Q: Stimuli in the brain, stomach, and small intestine activate or inhibit production of what secretion? Choices: - metabolic juice - sweat - digestive juice - gastric juice A:
gastric juice
Answer the following question given this paragraph: Unlike amphibians, reptiles do not have a larval stage. Instead, newly hatched reptiles look like smaller versions of the adults. They are able to move about on their own, but they are vulnerable to predators. Even so, most reptile parents provide no care to their hatchlings. In fact, most reptiles don't even take care of their eggs. For example, female sea turtles lay their eggs on a sandy beach and then return to the ocean. The only exceptions are female crocodiles and alligators. They may defend their nest from predators and help the hatchlings reach the water. If the young remain in the area, the mother may continue to protect them for up to a year. Q: Unlike amphibians, reptiles do not have what stage? Choices: - egg - reproductive - adult - larval A:
larval
Q: Answer the following question given this paragraph: There are two common ways to measure pH. When only an approximate pH value is needed, an inexpensive test involves the use of acid-base indicators , which change color based on the relative acidity of the solution. One type of common indicator is litmus paper. For example, if a piece of litmus paper is dipped into an acidic solution (pH below ~4.5), it will turn red, and dipping it into a basic solution (pH above ~8.5) will turn it blue. Solutions of intermediate pH will result in various shades of purple. Because different indicators change color at different pH values, the use of multiple indicators can generally narrow down the possible pH of a solution to a range of about 0.5-1 pH units. Figure below shows the colors exhibited by various indicators at different pH values. Q: How does litmus paper indicate the ph value of a solution? Choices: - by texture - by shape - by smell - by color A:
A: by color
Question: Answer the following question given this paragraph: Atomic radii have been measured for elements. The units for atomic radii are picometers, equal to 10 -12 meters. As an example, the internuclear distance between the two hydrogen atoms in an H 2 molecule is measured to be 74 pm. Therefore, the atomic radius of a hydrogen atom is . Q: What unit are atomic radii typically measured in? Choices: - sporozoans - radons - powers - picometers A:
Answer: picometers
*Question*
Answer the following question given this paragraph: Most plants continue to grow throughout their lives. Like other multicellular organisms, plants grow through a combination of cell growth and cell division. Cell growth increases cell size. Cell division increases the number of cells. Q: How do plants grow? Choices: - through cell growth and sexual reproduction - through mitosis and cell division - through pollination and cell division - through cell growth and cell division A:
**Answer**
through cell growth and cell division
(Question)
Answer the following question given this paragraph: The mouth also begins the process of mechanical digestion. Sharp teeth in the front of the mouth cut or tear food when you bite into it (see Figure below ). Broad teeth in the back of the mouth grind food when you chew. Food is easier to chew because it is moistened by saliva from the salivary glands. The tongue helps mix the food with saliva and also helps you swallow. After you swallow, the chewed food passes into the pharynx. Q: Teeth in the back of the mouth are used for what? Choices: - swallowing food - tearing food - cutting food - grinding food A:
(Answer)
grinding food