In some regions, crabs are being threatened because they're popular delicacies in restaurants and common souvenirs for tourists. why do you think it's important to preserve these crabs? can you think of another environmental condition that could affect the population of these crabs?

I think it's important for the crabs to be preserved because many other species rely on them for food already. It's bad enough birds, and other animals munch on them but humans are making it worse. An environmental condition affecting the population of these crabs are roads, and houses, they block crabs from going to beach.

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Robber crabs eat other crabs, which likely controls the smaller crabs’ population. They also break down and digest plant matter in the ecosystem. That water pollution could negatively harm these crabs, especially if it occurs where young larvae live. Pollution could kill or harm some or all of the larvae, causing a drop in their population.

answer; i believe the correct answer is (data); /// good luck

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.