Answer the following question given this paragraph: In many species display behaviors, rather than actual physical attacks, are used to show aggression. This helps prevent injury and death. Male gorillas, for example, are more likely to put on a display of aggression than to attack another male. In fact, gorillas have a whole series of display behaviors that they use to show aggression. They beat on their chest, dash back and forth, and pound the ground with their hands. Q: How do the male gorillas show display behaviors? Choices: - food gathering - vocalization - spontaneous mutation - showing aggression A:
showing aggression

Answer the following question given this paragraph: Q: What part of the continuous dermal tissue system covers stems? Choices: - dermis - cuticle - callus - epidermis A:
epidermis

Answer the following question given this paragraph: The lungs of mammals are unique in having alveoli . These are tiny, sac-like structures. Each alveolus is surrounded by a network of very small blood vessels (see Figure below ). Because there are millions of alveoli in each lung, they greatly increase the surface area for gas exchange between the lungs and bloodstream. Human lungs, for example, contain about 300 million alveoli. They give the lungs a total surface area for gas exchange of up to 90 square meters (968 square feet). That's about as much surface area as one side of a volleyball court!. Q: The lungs of mammals are unique in having what? Choices: - alveolar - glands - acini - alveoli A:
alveoli

Answer the following question given this paragraph: Wallace's paper on evolution confirmed Darwin's ideas. It also pushed him to publish his book, On the Origin of Species. The book clearly spells out his theory. It also provides evidence and logic to support it. Q: On the origin of species is a book by darwin that spells out what theory? Choices: - theory of reproduction - theory of the universe - theory of the computation - theory of evolution A:
theory of evolution