On which of the following objects, all sitting on the ground together, does
Earth exert a greater gravitational pull than a baseball? Check all that apply.
A. A pencil
B. An inflatable beach ball
C. A truck
D. A bicycle
E. A camel

I would say C, D, and E.

Explanation:

They're all heavier than a baseball.

I hope you got it right, though!

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

there's the proffessional site that will you.