An ecologist conducts<span> a </span>greenhouse experiment<span> to </span>study<span> the </span>effect<span> of nitrogen </span>concentration<span> on the</span>productivity<span> of </span>sunflower seedlings<span>. What is the </span>independent variable<span> in this </span>experiment<span>? make predictions about how nature works</span>
Remove individuals from a population
Answer:
Producers
Consumers
Decomoposers
Detritivores
Explanation:
Nitrogen is very important element to all living organisms. Producers which comprises of plants have nitrogen fixing bacteria which helps in its growth.
Consumers, Decomposers and Dentrivores need nitrogen for their growth, through the building up of protein and also for DNA metabolism which helps in reproduction.
The two contrasts between seagulls and wild geese are migration and their sizes. One way they are similar is that they can both fly for great distances. The other way is that they are similar is that are both very large in size. The correct answer is A.
