What do you observe as you push up the balloon

The balloon will float up in the air is because helium is lighter than air. The balloon is pushing air out of the way that weighs more than the weight of the helium and the balloon together so the heavier air comes in underneath the balloon and the balloon is lifted up in the air.

The balloon will deflate and push out all the air it could.

Explanation:

It also gets smaller and decreases the size of the ballon.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

you know they are heterozygous for a trait because they have it as jj or jj.