C) Ability to roll the tongue is inherited.
Length of hair is conditional upon the environment, not necessarily genetics.
Ability to play piano is taught not passed through genetics.
Appetite of a puppy depends on nutrition amount.
The pores on the outer layer of the sponge which takes is water are called POROCYTES.
Sponges are groups of very simple animals which usually grow at a spot, that is, they lack the ability to move from one place to another. There are about 10,000 species of sponges; most sponges live in salt water while some live in fresh water. The body surface of sponges are made up of holes through which water enter into their cells.
1.5billion I don't know don't be so harsh?