In an African grassland, all of the animals have only one watering hole available with fresh water in the summer. A drought occurred over the summer, and the amount of water in the watering hole decreased significantly. How did this impact the animals in this ecosystem? Competition increased among the animals.

Competition increased among the animals.

Mutualism increased among the animals.

Mutualism increased among the animals.

Some consumers became decomposers.

Some consumers became decomposers.

Some producers became consumers

d.

explanation:

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.

to figure the total magnification of an image that you are viewing through the microscope is really quite simple. to get the total magnification take the power of the objective (4x, 10x, 40x) and multiply by the power of the eyepiece, (usually 10x)

1) a

2)c

3)a

4)c

5)b

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