I believe D because non of the answers above are reality, humans are great at living in different types of environments and even tend to change there environment.
Answer:
1.) everyone would essentially be an incest product bc wed all have to share the same DNA... oop and 2.) you either one wouldnt be able to tell anyone apart or two wed all be physically disabled or deformed.. wed also have to be asxual to share the exact same DNA..
Explanation:
It is necessary to calibrate the ocular micrometer with each objective because the magnification of each objective lens are different. The numerical value is specific and only holds for a specific objective ocular lens. So, they should be checked accordingly.
Well firstly, alleles are different versions of genes. A dominant allele will show it's trait regardless of if the organism only has one copy of the allele (heterozygous). A recessive allele will show the effect only if two copies of the allele are present (homozygous)
