Question

Frogs lay spherical eggs that are 1.2 millimeters in diameter. Nutrients are absorbed through the egg's surface. What is the approximate area ofa frog egg's surface?ОА. 15.1 mm2OB. 18.1 mm2OC. 86.8 mm2OD. 4.5 mm2

Answer 1

Surface Area of a Sphere

For a sphere of radius r, the surface area can be calculated as:

$A=4\pi r^2$

A frog's egg has a diameter of d = 1.2 mm. The radius is half the diameter, thus:

r = 1.2 mm/2 = 0.6 mm

Calculating the surface area:

$A=4\pi(0.6mm)^2$$A\approx4.5mm^2$

Choice D