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Answer:
Image result for How is nitrogen fixation related to nitrification?
Nitrogen-fixing bacteria in the soil and within the root nodules of some plants convert nitrogen gas in the atmosphere to ammonia.
Explanation:
Petroleum, and carbon. It's an organic thing and has the sources provided.
Answer:
D) homologous pairs of chromosomes form tetrads
Explanation:
During prophase I, the homologous chromosomes condense and become visible as the x shape we know, pair up to form a tetrad, and exchange genetic material by crossing over.
Frogs are cold blooded and most camouflaged frogs are nocturnal
