what are the two  most  common minerals located in earth's crust?       a.  iron and copper  b.  salt and saline  c.  feldspar and quartzd.  diamonds and gold

Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

If two parents who's blood types are both b produce a child that has blood type o, what can you say about the parent's genotybes? oa) one is ii ob) one is ibi oc) both are bi od) nothing, this is impossible