An intrusive igneous rock is one that forms A. When volcanoes erupt
B. from silica-rich magma
C. when magma cools within Earth
D. from lava on Earth's surface

after receiving a stimus, the sensory receptors send(s) signals to the appropriate area of the body.  

the must be sensory neurons.  

hope its .

gag reflex, poor dentition, gum retraction

have a good day

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers