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andreyandreev [35.5K]
3 years ago
14

Which two substances are among the four major types of organic compounds made by living things?

Biology
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

d and c

Explanation:

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The sperm and the first seminal fluid are produced and found initially in the seminiferous tubules of each testicle. From there they move on to several structures that contribute to the maturation process:

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