Answer:
Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) narrow (and single) geographical range, (2) only one or a few populations, (3) small population size and little genetic variability, (4) over-exploitation by people
Answer A. If the tectonic plates continually move then they change earth’s crust constantly.
Ethanol produced from bioenergy starts with starch produced by corn and sugar cane :)
Coronary artery.....are the arteries that provide blood to the wall of heart !
Lines up in the middle of the cell