Question

scientists use a formula called the biodiversity index to describe the amount of species diversity in a given area. the index lets them see biodiversity in terms of a measurable number. the number of species in an area is determined by observation. this number is divided by the total number of all the individuals in that area to calculate the biodiversity index. for example, a 5x5 - meter square area has 200 poppy plants, all the same species. 1 species - 200 individuals - 0.005. it has a very low biodiversity index. calculate the biodiversity index for each of the habitats below. habitat 1 # species ÷ total # individuals = biodiversity index ____÷__ = __. habitat 2 # species ÷ total # individuals = biodiversity index __÷__ = ____.

Explanation:

Step1: Count species in Habitat 1

There are 2 species (hexagons and diamonds). There are 8 individuals in total.

Step2: Calculate biodiversity index for Habitat 1

The biodiversity index is $\frac{2}{8}= 0.25$.

Step3: Count species in Habitat 2

There are 7 species (hexagon, square, heart, triangle, circle, trapezoid, diamond). There are 10 individuals in total.

Step4: Calculate biodiversity index for Habitat 2

The biodiversity index is $\frac{7}{10}=0.7$.

Answer:

Habitat 1: 2 $\div$ 8 = 0.25
Habitat 2: 7 $\div$ 10 = 0.7