Involuntary, meaning things in the body such as your heart is all regulated to act unconsciously while also receiving directives from the brain.
Answer:
both c and d are pretty accurate, but i dont have very much knowledge on warblers specifically. but those 2 answers would be the most common for such a case
Explanation:
Answer:
The only thing that can scratch Corundum is diamond.
Explanation:
We refer to the Mohs Hardness Scale for the hardness levels. We can see that Corundum is a level 9 which is the second highest so at a level 10 we see diamond, therefore diamond is the only thing that can scratch Corundum.
