The teacher understands the relationships between organisms and the environment. Show
Introduction
to Ecosystems The Concept of the Ecosystem Explanations of each of the subtopics related to ecology competencies are given in each of the following sections. Subtopics:
Abiotic vs. Biotic ComponentsThe beginning teacher identifies the abiotic and biotic components of an ecosystem. Key Concepts:
Resources:Abiotic and Biotic Factors Ecosystem Roles and Energy Flow through EcosystemsThe beginning teacher analyzes the interrelationships among producers, consumers, and decomposers in an ecosystem. Key Concepts:
Resources:Energy Ecosystems and the Atmosphere Energy Flow though Ecosystems
Population DynamicsThe beginning teacher identifies factors that influence the size and growth of populations in an ecosystem. Key Concepts:
Resources:Population
Growth NichesThe beginning teacher analyzes adaptive characteristics that result in a population’s or species’s unique niche in an ecosystem. Key Concepts:
Resources:Ecological Niches Energy FlowThe beginning teacher describes and analyzes energy flow through various types of ecosystems. Key Concepts:
Resources:Energy Flow through Ecosystems Model Ecosystems The Effect of Populations on EcosystemsThe beginning teacher knows how populations and species modify and affect ecosystems. Key Concepts:
Resources:Ecological
Succession Succession An Invasive
Species Algal Blooms What is the study of interactions between organisms and their environment?Ecology is the study of how organisms interact with one another and with their physical environment. The distribution and abundance of organisms on Earth is shaped by both biotic, living-organism-related, and abiotic, nonliving or physical, factors.
Which of the following concept refers to the optimistic approach to environmental issues that claims science can promote progress and solve environmental problems?maintains population at a steady level. Which of the following concepts refers to the optimistic approach to environmental issues that claims science can promote progress and solve environmental problems? rising.
Which of the following concepts refers to the number of live births in a given year for every thousand people in a population?Birth Rate (or crude birth rate) The number of live births per 1,000 population in a given year.
Which of the following concepts refers to the number of live births?Fertility. refers to the number of live births. Demographers use several measures of fertility. One measure is the crude birth rateThe number of live births for every 1,000 people in a population in a given year., or the number of live births for every 1,000 people in a population in a given year.
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