Amphibian eggs are
a. tough and leathery
b. soft and jelly-like
c. hard and breakable
d. bumpy and crusty

Which system revise and send electrical signals throughout the body

Which part of cellular respiration must occur before any of the other steps can occur

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi, r^3 , where r is the sphere’s radius.