X hits on this document

PDF document

California Science Teachers Association In collaboration with the California Department of Education - page 44 / 50

146 views

0 shares

0 downloads

0 comments

44 / 50

ECOLOGY CALIFORNIA CONTENT STANDARDS: Grade 6 5. Organisms in ecosystems exchange energy and nutrients among themselves and with the environment. As a basis for understanding this concept: b. Students know matter is transferred over time from one organism to others in the food web and between organisms and the physical environment. c. Students know populations of organisms can be categorized by the functions they serve in an ecosystem. e. Students know the number and types of organisms an ecosystem can support depends on the resources available and on abiotic factors, such as quantities of light and water, a range of temperatures, and soil composition. CALIFORNIA CONTENT STANDARDS: Biology

6. Stability in an ecosystem is a balance between competing effects. As a basis for understanding this concept: a. Students know biodiversity is the sum total of different kinds of organisms and is affected by alterations of habitats. b. Students know how to analyze changes in an ecosystem resulting from changes in climate, human activity, introduction of nonnative species, or changes in population size. c. Students know how fluctuations in population size in an ecosystem are determined by the relative rates of birth, immigration, emigration, and death. d. Students know how water, carbon, and nitrogen cycle between abiotic resources and organic matter in the ecosystem and how oxygen cycles through photosynthesis and respiration. e. Students know a vital part of an ecosystem is the stability of its producers and decomposers. f. Students know at each link in a food web some energy is stored in newly made structures but much energy is dissipated into the environment as heat. This dissipation may be represented in an energy pyramid.

39

% of Test

Number of

Integrated

Integrated

Items

I

II

18

11

X

X

X

X

X

X

Document info
Document views146
Page views146
Page last viewedThu Dec 08 16:53:46 UTC 2016
Pages50
Paragraphs948
Words13325

Comments