Students will use data and information about population dynamics, abiotic factors, and/or biotic factors to explain and/or analyze a change in carrying capacity and its effect on population size in an ecosystem.
Students will explain that different types of organisms exist within aquatic systems due to chemistry, geography, light, depth, salinity, and/or temperature.
Students will describe the potential changes to an ecosystem resulting from seasonal variations, climate changes, and/or succession.
Students will identify positive and/or negative consequences that result from a reduction in biodiversity.
Students will assess the reliability of sources of information according to scientific standards.Content Limits :
Items referring to chemical factors in aquatic systems are limited to pH, oxygen, carbon dioxide, nitrogen, phosphorous, and salinity.
Items referring to geography in aquatic systems are limited to water depth, latitude, temperature, underwater topography, and proximity to land.
Items will not require the identification of oceanic zones.
Items referring to reduction in biodiversity may include examples of catastrophic events, climate changes, human activities, and the introduction of invasive and nonnative species, but they will not assess specific knowledge of these.
Items referring to reduction in biodiversity will focus on the consequence and not require knowledge of the specific event that led to the reduction.
Items addressing climate change are limited to biodiversity and population dynamics contexts.