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GREYUIT [131]
3 years ago
10

Someone help me pleaseeee

Biology
2 answers:
Rudik [331]3 years ago
8 0

Answer:

B

Explanation:

oxygen and carbon dioxide

Zielflug [23.3K]3 years ago
5 0

Answer:

oxygen and carbon dioxide

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The question is incomplete. The complete question is as follows:

The most widely known HR certifications are the PHR (Professional in Human Resources) and the SPHR (Senior Professional in Human Resources, both sponsored by the Human Resource Certification Institute (HRCI). Visit the HRCI website [https://www.hrci.org/], and answer the following question about the PHR and SPHR certifications.

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