Please give its correct counting of each species in each quadrate alomg with each population density and population frequency

All seven quadrats (Quadrat I through Quadrat VII) are identical in their species composition and counts.

• Species A (Small sprout): 4 individuals per quadrat
• Species B (Pine tree): 4 individuals per quadrat
• Species C (Bushy tree): 6 individuals per quadrat
• Species D (Grass clump): 6 individuals per quadrat

There are 7 quadrats in total.

• Total Species A: $4 \text{ individuals/quadrat} \times 7 \text{ quadrats} = 28 \text{ individuals}$
• Total Species B: $4 \text{ individuals/quadrat} \times 7 \text{ quadrats} = 28 \text{ individuals}$
• Total Species C: $6 \text{ individuals/quadrat} \times 7 \text{ quadrats} = 42 \text{ individuals}$
• Total Species D: $6 \text{ individuals/quadrat} \times 7 \text{ quadrats} = 42 \text{ individuals}$

Population density is calculated as the total number of individuals of a species divided by the total area sampled. Assuming each quadrat represents 1 unit of area, the total sampled area is 7 units.

$$\text{Density} = \frac{\text{Total number of individuals of a species}}{\text{Total area sampled}}$$

• Density of Species A: $$D_A = \frac{28 \text{ individuals}}{7 \text{ units}} = 4 \text{ individuals/unit area}$$
• Density of Species B: $$D_B = \frac{28 \text{ individuals}}{7 \text{ units}} = 4 \text{ individuals/unit area}$$
• Density of Species C: $$D_C = \frac{42 \text{ individuals}}{7 \text{ units}} = 6 \text{ individuals/unit area}$$
• Density of Species D: $$D_D = \frac{42 \text{ individuals}}{7 \text{ units}} = 6 \text{ individuals/unit area}$$

The population densities are: Species A: $\boxed{4 \text{ individuals/unit area}}$ Species B: $\boxed{4 \text{ individuals/unit area}}$ Species C: $\boxed{6 \text{ individuals/unit area}}$ Species D: $\boxed{6 \text{ individuals/unit area}}$

Population frequency is calculated as the number of quadrats in which a species occurs divided by the total number of quadrats sampled, multiplied by 100%. Since all species are present in every quadrat, they each occur in 7 out of 7 quadrats.

$$\text{Frequency} = \frac{\text{Number of quadrats with species}}{\text{Total number of quadrats sampled}} \times 100\%$$

• Frequency of Species A: $$F_A = \frac{7}{7} \times 100\% = 100\%$$
• Frequency of Species B: $$F_B = \frac{7}{7} \times 100\% = 100\%$$
• Frequency of Species C: $$F_C = \frac{7}{7} \times 100\% = 100\%$$
• Frequency of Species D: $$F_D = \frac{7}{7} \times 100\% = 100\%$$

The population frequencies are: Species A: $\boxed{100\%}$ Species B: $\boxed{100\%}$ Species C: $\boxed{100\%}$ Species D: $\boxed{100\%}$