If a habitat loses 25% of its biodiversity, and originally had 120 species, how

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Question: If a habitat loses 25% of its biodiversity, and originally had 120 species, how many species remain?

Options:

Correct Answer: 90

Solution:

120 species * 0.75 = 90 species remain.

If a habitat loses 25% of its biodiversity, and originally had 120 species, how many species remain?

If a habitat loses 25% of its biodiversity, and originally had 120 species, how many species remain?

Step 1: Identify the original number of species in the habitat, which is 120 species.
Step 2: Determine the percentage of biodiversity lost, which is 25%.
Step 3: Calculate the percentage of biodiversity that remains by subtracting the lost percentage from 100%. This is 100% - 25% = 75%.
Step 4: Convert the remaining percentage into a decimal for calculation. 75% as a decimal is 0.75.
Step 5: Multiply the original number of species (120) by the remaining percentage in decimal form (0.75). This is 120 species * 0.75.
Step 6: Calculate the result of the multiplication, which is 90 species.

Biodiversity Loss Calculation – Understanding how to calculate the remaining species after a percentage loss of biodiversity.
Percentage Reduction – Applying the concept of percentage reduction to a total quantity.