Heart rate or pulse I think.
Look kid, this question has been up for 9 hours think its time to let it go......... hoped i helped. ✔verified✔
Answer:
The Answer is A.
Explanation:
This is correct because evolution is a change in the inherited traits of a population over many generations. While natural selection is a mechanism where the members of a population best suited to their environment have the best chance of surviving to pass on their genes.
Answer:
you run the risk of crushing the objective lens onto the slides.
Downfolds are calles synclines. B is the correct choice.