<span>bones and footprints preserved in stone are examples of fossils. Fossils hardened animal remains such as shells, bones, and teeth.</span> That is the best i can come up with. Hope it helps any.
All organisms do have a closed circulatory system
so A <span />
Answer:
DNA Synthesis the number of chromosomes is altered so that there are either too many or too few chromosomes in the cells.
Explanation:
Answer:
Epinephrine, also known as Adrenaline
Explanation:
Adrenaline impacts short-term mood and can take seconds to flood your system.
*it may also be cortisol, I'm not sure if there's more context. Cortisol takes longer to work and can have long-term effects.
The answer u r looking for is- D* failure of the immune system to distinguish self from nonself. Hope I’ve helped ;)