7. How does

salt prevent food spoilage?

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Pitch is only taken into consideration when a sound is extremely low. True or False?

State one disadvantage of burning coal other than coal is a non renewable energy source

The third stage of cellular respiration is the Krebs cycle the electron transport chain fermentation glycolysis

Many people who care about conserving natural resources would choose wind energy to power their homes. However, wind power is not an option for people in many parts of the country.

Geologists theorize that the Earth's center consists of predominantly which metal copper iron nickel uranium

What body system peforms the function of getting rid of chemical waste

Natural selection is defined as A. the changes that occur in an organism over its lifespan. B. the changes in the characteristics within a population that lead to survival. C.

Is dna considered to be an organic molecule? Why or why not?

A large population of three-spined stickleback fish lives in an Alaskan lake. Two alleles segregate at a neutral locus. The allele frequency of the first allele is 0.78. What is the most likely frequency of that allele in the next generation?

Personal eyeglasses provide as much protection as