Answer the following question given this paragraph: Community Dynamics Community dynamics are the changes in community structure and composition over time, often following environmental disturbances such as volcanoes, earthquakes, storms, fires, and climate change. Communities with a relatively constant number of species are said to be at equilibrium. The equilibrium is dynamic with species identities and relationships changing over time, but maintaining relatively constant numbers. Following a disturbance, the community may or may not return to the equilibrium state. Succession describes the sequential appearance and disappearance of species in a community over time after a severe disturbance. In primary succession, newly exposed or newly formed rock is colonized by living organisms; in secondary succession, a part of an ecosystem is disturbed and remnants of the previous community remain. In both cases, there is a sequential change in species until a more or less permanent community develops. Primary Succession and Pioneer Species Primary succession occurs when new land is formed, for example, following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new land is continually being formed. On the Big Island, approximately 32 acres of land is added to it its size each year. Weathering and other natural forces break down the rock enough for the. Q: What term describes the sequential appearance and disappearance of species in a community over time after a severe disturbance? Choices: - supression - generational replacement - pattern - succession A:
succession
Answer the following question given this paragraph: A cross section of earthquake epicenters. The depth outlines the subducting plate. There are shallow, intermediate, and deep earthquakes. Q: Subducting plate and epicenter are terms related to what phenomenon? Choices: - hurricane - tidal wave - eruption - earthquake A:
earthquake
Q: Answer the following question given this paragraph: Saturated hydrocarbons have only single bonds between carbon atoms, so the carbon atoms are bonded to as many hydrogen atoms as possible. In other words, they are saturated with hydrogen atoms. Q: Saturated hydrocarbons get their name because they are saturated with what atoms? Choices: - helium - nitrogen - oxygen - hydrogen A:
A: hydrogen
Question: Answer the following question given this paragraph: The most common type of cancer in adult males is cancer of the prostate gland. The prostate gland is part of the male reproductive system. About one third of all cancers in men are prostate cancers. Q: What is the most common type of cancer in adult males? Choices: - lung - leukemia - stomach - prostate A:
Answer: prostate
*Question*
Answer the following question given this paragraph: Q: What is often a result of untreated atherosclerosis? Choices: - cancer - heart disease - seizures - a heart attack or stroke A:
**Answer**
a heart attack or stroke
*Question*
Answer the following question given this paragraph: Q: What are the vertical columns of similar chemical properties on the periodic table? Choices: - Family - zones - Pods - groups A:
**Answer**
groups