The answer to the first question is a.
It is tested with the blood gas test
2.) occasionally beneficial
3.) omission of information
4.) addition of information
5.) mistakes in copying
Nucleic acids are the building blocks of proteins so a b is rna and C is genes
The 4 divisions of Gymnos:
1- coniferophyte
2- Cycadophyta
3- Ginkgophyta
4- Gnetophyta
Describe
1- Conifers : Pines , firs , redwoods
2- Coniferophyta : seeds , large
3- Cycadophyta : Tropical and subtropical
4- Ginkgophyta : Only living Meso Era survived in China .
I hope that's help !
