Answer the following question given this paragraph: Figure 7.22 Osteoporosis Osteoporosis is an age-related disorder that causes the gradual loss of bone density and strength. When the thoracic vertebrae are affected, there can be a gradual collapse of the vertebrae. This results in kyphosis, an excessive curvature of the thoracic region. Q: What is the age-related disorder that causes the gradual loss of bone density and strength? Choices: - mitosis - arthritis - fibrosis - osteoporosis A:
osteoporosis
Answer the following question given this paragraph: Q: The toothlessness of modern birds, which serves to trim the weight of the head, is an example of what? Choices: - mutation - genetic drift - variety - adaptation A:
adaptation
Q: Answer the following question given this paragraph: Signaling molecules can belong to two broad groups. Neurotransmitters are released at synapses, whereas hormones are released into the bloodstream. These are simplistic definitions, but they can help to clarify this point. Acetylcholine can be considered a neurotransmitter because it is released by axons at synapses. The adrenergic system, however, presents a challenge. Postganglionic sympathetic fibers release norepinephrine, which can be considered a neurotransmitter. But the adrenal medulla releases epinephrine and norepinephrine into circulation, so they should be considered hormones. What are referred to here as synapses may not fit the strictest definition of synapse. Some sources will refer to the connection between a postganglionic fiber and a target effector as neuroeffector junctions; neurotransmitters, as defined above, would be called neuromodulators. The structure of postganglionic connections are not the typical synaptic end bulb that is found at the neuromuscular junction, but rather are chains of swellings along the length of a postganglionic fiber called a varicosity (Figure 15.5). Q: Where are hormones released? Choices: - liver - lungs - brain - bloodstream A:
A: bloodstream
Question: Answer the following question given this paragraph: An electric transformer connects two circuits with an iron core that becomes an electromagnet. Q: An electric transformer connects two circuits with an iron core that becomes what? Choices: - inductive - radioactive - actuator - electromagnet A:
Answer: electromagnet
*Question*
Answer the following question given this paragraph: Today, reptiles live in a wide range of habitats. They can be found on every continent except Antarctica. Many turtles live in the ocean, while others live in freshwater or on land. Lizards are all terrestrial, but their habitats may range from deserts to rainforests, and from underground burrows to the tops of trees. Most snakes are terrestrial and live in a wide range of habitats, but some snakes are aquatic. Crocodilians live in and around swamps or bodies of freshwater or salt water. Q: Which continent is the only one that reptiles don't inhabit? Choices: - Africa - South America - Europe - antartica A:
**Answer**
antartica
(Question)
Answer the following question given this paragraph: Shrimp are an example of crustaceans, one group within the arthropods. Shrimp live on the ocean floor in many parts of the world. Shrimp are not only food for humans; they are also an important food source for larger marine animals. Q: Shrimp are an example of what group within the arthropods? Choices: - myriapods - insect - scorpion - crustaceans A:
(Answer)
crustaceans