Answer:
So first understand that empirical formula refers to ratio of different atoms in lowest integer form.
To calculate this let's make mol C as our default ratio of 1* and divide everything by 0.528 mol.
Na 1.06/0.528 = 2.00757575758
C 0.528/0.528 = 1
O 1.59/0.528= 3.01136364
Na2CO3
It's sodium carbonate
Normally tree rings will disappear, damage, or go missing when the tree doesn't have enough nutrients, another factor that contributes to that is drought.
This should be an example of genetic drift.
The brown spotted deer would spread their genes more than the white spotted ones which would eventually lead to them completely overpowering genetically the white deer in future generations.
The characteristics of T lymphocytes that are involved in specific immunity includes;
They mature in the thymus
They move freely among lymphoid tissues and connective tissues
They are responsible for cell mediated immunity.
Specific immunity is a subsystem of immune system that is comprised of highly specialized, systemic cells and processes that prevent the growth of pathogens or eliminate them from the body.