Answer:
but the problem is a good one that I don't think it's going for me in the future and hw will be 6666inches for a while and hw is the only way of doing that yo I don't want it is it and I'm still in love and hw will be the first time I've seen her on my phone pa I don't want her back in my room but 6AM to
3: B Nervous system. 4: A Sensing and responding to its external environment.
Hey! I'm pretty sure this is chemistry instead of biology haha
But anyways, a typical carbon atom can form up to 4 covalent bonds!
Answer:
A stellar-mass black hole forms when a star with more than 20 solar masses exhausts the nuclear fuel in its core and collapses under its own weight. The collapse triggers a supernova explosion that blows off the star's outer layers.
Explanation: