Of the 1090 species of gymnosperm are gnetophytesW what percent of gymnosperms species are gnetophytes? Round to the nearest hundredth

The tubes transporting minerals and water upward are called ?

Any sound above what db can cause hearing loss in human beings

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of