The Answer to question number two is the sun
DRN or data release number refers your unique 4 digit code on the FAFSA confirmation page and your student aid report
Answer - D
Gametes always have half the number of chromosomes compared to the somatic cells, hence an unfertilized egg would have half the chromosomes from the mother, and a fertilized egg will contain diploid number of chromosomes. Half of them from inherited from each of the two parents.
It's the epidermis, because it is the outermost layer of our skin, it creates a waterproof barrier and creates skin color pigmentation.
I think the correct answer is nitrogen. Among all the main nutrients in the biosphere, the substance that is fixed or constant inside the nodules in certain roots of plants would be nitrogen. Hope this answers the question. Have a nice day.