All of these are adaptations used to enable pr otists move except for B.spores , because they are used in asexual reproduction.
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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.
Muhammad Divided the first Islam empire
The value of the unknown number is 10.5.
Let the unknown number = x
When 20 is subtracted from the number and the result is squared which is equal to the square of the unknown number minus 20:
(x - 20)² = x² - 20
<em>expand the equation;</em>
x² - 40x + 400 = x² - 20
<em>collect similar terms together;</em>
x² - x² - 40x = -20 - 400
-40x = -420

Thus, the value of the unknown number is 10.5.
Learn more about word problem here: brainly.com/question/18336356