Que fator abiótico faz com que as folhas das arvores caiam?

Nucleic acid certain protein cell membranes certain carbohydrates

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.

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content