What is it about i might know it
Answer: Rocky debris, primarily from the impactor and some of Earth's outer layer, was hurled out into orbit around Earth.
Hopefully this helps
Answer:
To transport signals to the rest of the body and to keep the body upright.
Explanation:
To protect the nerves and keep the body upright. This is because if your spine is broken, then you become paralysed therefore it's an extremely important aspect for the body.
The exoskeleton is made of <span>chitin</span>
I'm not sure it is true but then the major difference is that it produces 4 haploid cells rather than 2 diploid cells