Answer the following question given this paragraph: Q: An action potential that starts at the axon hillock moves along the axon only toward what? Choices: - nerve endings - ionic pathways - polar synapses - the synaptic terminals A:
the synaptic terminals
Answer the following question given this paragraph: Vertebral Column Developmental anomalies, pathological changes, or obesity can enhance the normal vertebral column curves, resulting in the development of abnormal or excessive curvatures (Figure 7.21). Kyphosis, also referred to as humpback or hunchback, is an excessive posterior curvature of the thoracic region. This can develop when osteoporosis causes weakening and erosion of the anterior portions of the upper thoracic vertebrae, resulting in their gradual collapse (Figure 7.22). Lordosis, or swayback, is an excessive anterior curvature of the lumbar region and is most commonly associated with obesity or late pregnancy. The accumulation of body weight in the abdominal region results an anterior shift in the line of gravity that carries the weight of the body. This causes in an anterior tilt of the pelvis and a pronounced enhancement of the lumbar curve. Scoliosis is an abnormal, lateral curvature, accompanied by twisting of the vertebral column. Compensatory curves may also develop in other areas of the vertebral column to help maintain the head positioned over the feet. Scoliosis is the most common vertebral abnormality among girls. The cause is usually unknown, but it may result from weakness of the back muscles, defects such as differential growth rates in the right and left sides of the vertebral column, or differences in the length of the lower limbs. When present, scoliosis tends to get worse during adolescent growth spurts. Although most individuals do not require treatment, a back brace may be recommended for growing children. In extreme cases, surgery may be required. Excessive vertebral curves can be identified while an individual stands in the anatomical position. Observe the vertebral profile from the side and then from behind to check for kyphosis or lordosis. Then have the person bend forward. If scoliosis is present, an individual will have difficulty in bending directly forward, and the right and left sides of the back will not be level with each other in the bent position. Q: An excessive posterior curvature of the thoracic region is also known as what? Choices: - lordosis - babesiosis - osmosis - kyphosis A:
kyphosis
Q: Answer the following question given this paragraph: In any chemical reaction, there is no overall change in the amount of energy. Energy cannot be created or destroyed. This is the law of conservation of energy. Q: What law states that energy cannot be created or destroyed? Choices: - deposit of energy - conservation of force - difference of energy - conservation of energy A:
A: conservation of energy
Question: Answer the following question given this paragraph: Arthropods are the largest phylum in the animal kingdom. Q: What are the largest phylum in the animal kingdom? Choices: - crustaceans - cephalopods - mammals - arthropods A:
Answer: arthropods
*Question*
Answer the following question given this paragraph: A rock under enough stress will fracture. There may or may not be movement along the fracture. If there is not movement, the fracture is a joint. If there is movement, the fracture is a fault. Q: What will happen to a rock when it's under tremendous stress? Choices: - it will slow - it will solidify - it will rebound - it will fracture A:
**Answer**
it will fracture
Answer the following question given this paragraph: A soil is a residual soil when it forms in place. Only about one third of the soils in the United States form this way. The material comes from the underlying bedrock. Residual soils form over many years since it takes a long time for solid rock to become soil. First, cracks break up the bedrock. This may happen due to ice wedging. Weathering breaks up the rock even more. Then plants, such as lichens or grasses, become established. They cause further weathering. As more time passes and more layers of material weather, the soil develops. Q: Soil that forms in place over a very long period is called what? Choices: - leakage soil - antique soil - resultant soil - residual soil A:
residual soil