The <span>intrusions in the rock layers would be H and J.
</span>Intrusions are formed by crystallization of magma infiltrations inside the Earth's crust. These intrusions happen as magma ascends slowly from within the Earth penetrating any space or fissure that it can find. Because this process is so slow, as pressure is released and temperature decreases, magma solidifies and crystallizes into solid intrusive rocks. They are usually the "layers" that brake through others and appear across several other layers in a different orientation than those.
They can benefit by being able to use those things to reproduce to make more strawberries
That isn't even possible. Your body is made of them. If you had none then you wouldn't be existing.