10. Agronomists - A
11. Ecologist - D
12. Genetics - F
13. Botanists - C
14. Zoologist - I
15. Entomologist - E
16. Paleontologist - H
17. Anthropologist - B
18. Marine biologist - G
Sorry for the wait.. I hope I got them all right :)
Explanation:
they are many such as : puff adder, gaboon viper, black mamba, Cape cobra,boom slang, rinkhals,python
But the deadliest is black mamba snake
Theoretically it is the Chargaff's rule which entails that the ratio of purines and pyrimidines are 1. So following that rule you can solve this question.
G (purine) = C (pyrimidine) and
A (purine) = T (pyrimidine)
So G + C would be 28% and hence
A +C would be 72% i.e. 36% each.
Please note that their are certain modified bases besides these four are also there including methyl Cytosine, Methylated Adenine. But htese modification does not violate the Chargaff's rule and they follow standard Watson Crick base pairing.
Brain and spinal cord are the components of central nervous system.
