Q: Animals that defend their area are generally known as what kinds of animals? Read this paragraph and choose the correct option from the provided answers: Some species of animals are territorial . This means that they defend their area. The area they defend usually contains their nest and enough food for themselves and their offspring. A species is more likely to be territorial if there is not very much food in their area. Animals generally do not defend their territory by fighting. Instead, they are more likely to use display behavior. The behavior tells other animals to stay away. It gets the message across without the need for fighting. Display behavior is generally safer and uses less energy than fighting. Male gorillas use display behavior to defend their territory. They pound on their chests and thump the ground with their hands to warn other male gorillas to keep away from their area. The robin displays his red breast to warn other robins to stay away ( Figure below ). Choices: - mutants - neutral - carnivores - territorial A:
territorial

Q: What mineral that occurs in bones helps combat osteoporosis? Read this paragraph and choose the correct option from the provided answers: Osteoporosis is a disease in which bones lose mass and become more fragile than they should be. Osteoporosis also makes bones more likely to break. Two of the easiest ways to prevent osteoporosis are eating a healthy diet that has the right amount of calcium and vitamin D and to do some sort of weight-bearing exercise every day. Foods that are a good source of calcium include milk, yogurt, and cheese. Non-dairy sources of calcium include Chinese cabbage, kale, and broccoli. Many fruit juices, fruit drinks, tofu, and cereals have calcium added to them. It is recommended that teenagers get 1300 mg of calcium every day. For example, one cup (8 fl. oz. ) of milk provides about 300 mg of calcium, or about 30% of the daily requirement. Other sources of calcium are pictured in the Figure below . Choices: - magnesium - iron - potassium - calcium A:
calcium

Q: Population growth is determined by rates of birth, death, immigration, and what else? Read this paragraph and choose the correct option from the provided answers: Population growth is determined by rates of birth, death, immigration, and emigration. Choices: - excitation - relaxation - exploitation - emigration A:
emigration

Q: For any given species, what term means the maximum population that can be supported by the environment? Read this paragraph and choose the correct option from the provided answers: A population can't keep growing bigger and bigger forever. Sooner or later, it will run out of things it needs. For a given species, there is a maximum population that can be supported by the environment. This maximum is called the carrying capacity . When a population gets close to the carrying capacity, it usually grows more slowly ( Figure below ). When the population reaches the carrying capacity, it stops growing. Choices: - zero population growth - mass extinction - tipping point - carrying capacity A:
carrying capacity