B.1.6 Show that a living cell is composed mainly of a small number of chemical elements - carbon, hydrogen, nitrogen, oxygen, phosphorous, and sulfur. Recognize that carbon can join to other carbon atoms in chains and rings to form large and complex molecules.

 

Molecules and Cells

7.4.5 Explain how food provides the fuel & the building material for all organisms.

7.4.6 Describe how plants use the energy from light to make sugars from carbon dioxide & water to produce food that can be used immediately or stored for later use.

7.4.7 Describe how organisms that eat plants break down the plant structures to produce the materials & energy that they need to survive, & in turn, how they are consumed by other organisms.

B.1.4 Understand and describe that the work of the cell is carried out by the many different types of molecules it assembles, such as proteins, lipids, carbohydrates, and nucleic acids.

Developmental and Organismal Biology

7.4.10 Explain that the amount of food energy (calories) a person requires varies with body weight, age, sex, activity level, & natural body efficiency. Understand that regular exercise is important to maintain a healthy heart/lung system, good muscle tone, & strong bone structure.

Genetics

Evolution

Ecology

7.4.2 Describe that all organisms, including the human species, are part of & depend on two main interconnected global food webs, the ocean food web & the land food web.

7.4.8 Understand & explain that as any population of organisms grows, it is held in check by one or more environmental factors. These factors could result in depletion of food or nesting sites and/or increased loss to increased numbers of predators or parasites. Give examples of some consequences of this.

7.4.9 Describe how technologies having to do with food production, sanitation, & disease prevention have dramatically changed how people live & work & have resulted in changes in factors that affect the growth of human population.

8.4.4 Describe how matter is transferred from one organism to another repeatedly & between organisms & their physical environment.

B.1.37 Explain that the amount of life any environment can support is limited by the available energy, water, oxygen, and minerals, and by the ability of ecosystems to recycle the residue of dead organic materials. Recognize, therefore, that human activities and technology can change the flow and reduce the fertility of the land.

B.1.41 Recognize that and describe how human beings are part of EarthÕs ecosystems. Note that human activities can, deliberately or inadvertently, alter the equilibrium in ecosystems.

B.1.43 Understand that and describe how organisms are influenced by a particular combination of living and nonliving components of the environment.

B.1.44 Describe the flow of matter, nutrients, and energy within ecosystems.

Historical

8.7.1 Understand/explain that Antoine LavoisierÕs work was based on the idea that when materials react with each other, many changes can take place, but that in every case the total amount of matter afterward is the same as before. Note that Lavoisier successfully tested the concept of conservation of matter by conducting a series of experiments in which he carefully measured the masses of all the substances involved in various chemical reactions, including the gases used & those given off.

 

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