Bio 171 Exam 3 Questions with 100% Correct Answers (A+ Graded)

Abiotic factor Correct Answer non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Aboveground biomass Correct Answer the total mass of living plants, excluding their roots; Biomes difffer substantially in the amount of aboveground biomass Biome Correct Answer ways ecologists and biodiversity scientists categorize different areas, based on distinctive and stable assemblages of species that occur in those areas; what organisms occur in an area is determined in part by abiotic factors and biotic factors Seasonality is an important aspect of some biomes Biotic factor Correct Answer an interaction between an animal or plant that influences or affects an ecosystem Climate Correct Answer Climate is, essentially, weather over long time scales (decades or longer). Climate refers to long term meteorological conditions such as temperature, precipitation, humidity, and wind. Coniferous Correct Answer gymnosperms contain the group of plants known as conifers; Conifers: Are not an especially diverse group in terms of number of species Have needle-like leaves that they usually retain all year (common name: evergreens) Wind pollinated More common at higher latitudes and higher elevation, and are common in dry areas (used to be more evenly distributed across the globe, but were displaced from the tropics by angiosperms Ex: pine trees, firs, redwoods Deciduous Correct Answer deciduous trees are angiosperms Angiosperms: The flowering plants The dominant group of terrestrial plants Remarkably diverse The evolution of angiosperms altered the distribution of other groups of plants and increased terrestrial productivity