Surface area to volume ratio

Table 1 shows data for two small mammalian species: the common pipistrelle (a flying bat) and the wood mouse (a ground-dwelling rodent).

Table 1

Mammal	Mean body mass / $kg\text{kg}$	Mean lung volume / $cm3\text{cm}^3$
Common pipistrelle	0.0050	0.90
Wood mouse	0.020	0.80

Calculate how many times the lung volume per unit of body mass of the common pipistrelle is greater than that of the wood mouse.

Give your answer to an appropriate number of significant figures.

[3]

Suggest one explanation for this difference.

[1]

Surface area to volume ratio Questions

Table 1 shows data for two small mammalian species: the common pipistrelle (a flying bat) and the wood mouse (a ground-dwelling rodent).

Table 1

Mammal	Mean body mass / $kg\text{kg}$	Mean lung volume / $cm3\text{cm}^3$
Common pipistrelle	0.0050	0.90
Wood mouse	0.020	0.80

Calculate how many times the lung volume per unit of body mass of the common pipistrelle is greater than that of the wood mouse.

Give your answer to an appropriate number of significant figures.

[3]

Suggest one explanation for this difference.

[1]