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3 years ago

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Choose the best synonym to replace the underline word in the sentence below: These fossil fuels emit carbon dioxide into the air

, contributing to global warming. a. burn c. release b. allow d. expire

1 answer:

Morgarella [4.7K]3 years ago

5 0

Answer: Assuming the underlined word is "emit," then the answer is C.

Explanation:

When fossil fuels are burned, they release carbon dioxide into the atmosphere.

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Is the heme molecule attached to hemoglobin during the primary level or tertiary level of organization?

djyliett [7]

Answer:

Tertiary.

Explanation:

Primary structure of proteins refers to the order of amino acids that make up the protein. The heme is an nonprotein non-amino acid, so it is not involved at this stage.

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3 years ago