The factor that poses the greatest threat is loss of habitat. Have a nice day!
Arterias, venas y capilares.
The diploid generation of the plant life cycle always PRODUCE SPORES. See Concept 29.2 (Page 625) The diploid generation of the plant life cycle always PRODUCE SPORES. See Concept 29.2 (Page 625) is larger and more conspicuous than the haploid stage produces eggs and sperm is called the gametophyte develops from a spore produces spores