Amarine biologist is examining the effects of oil pollution on a population of birds known as seagulls (larus canus). she is particularly concerned that oil pollution may reduce the number of eggs raised in a seagull nest. during one breeding season, she counted the number of eggs present in a sampling of six seagull nests near each of the 14 refineries throughout the state. she discovered that seagulls laid and raised an average of four eggs per season. to confirm her hypothesis, the researcher must now examine seagull nests that have not been exposed to oil pollution. the researcher believes she is correct, and so expects to find a) 0-2 eggs per nest. b) 2-4 eggs per nest. c) 1 egg per nest. d) 4-6 eggs per nest.

A marine biologist is examining the effects of oil pollution on a population of birds known as seagulls (Larus canus). She is particularly concerned that oil pollution may reduce the number of eggs raised in a seagull nest. During one breeding season, she counted the number of eggs present in a sampling of six seagull nests near each of the 14 refineries throughout the state. She discovered that seagulls laid and raised an average of four eggs per season. To confirm her hypothesis, the researcher must now examine seagull nests that have not been exposed to oil pollution. The researcher believes she is correct, and so expects to find D) 4-6 eggs per nest.

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.

the correct answer is c   with the systems