Which of the following describes a relationship of predator-prey? a oxpecker birds eat parasitic ticks off the backs of zebras b a moray eel eats a fish swimming by c a tick attaches itself to the inside leg of a deer d birds feed off the insects that are stirred up from the grasses as cattle move through

A moray eel eats a fish swimming by.

Explanation:

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step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.