Scientist made detailed analysis of the fossilized bones of each species. <span />
To estimate the prevalence of vitamin D deficiency (25(OH)D) <50 nmol/L among recently arrived immigrants from Africa and Asia in Oslo, and to explore 25(OH)D levels according to origin, gender and age.
Answer:
this is because they appear dead outside and alive inside beings
Two important factors is temperature and liquid water.
The answer would most likely be D. Mass Extinction
