Answer: the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
or
the physiology, behavior, and other qualities of a particular organism or class of organisms.
and
the plants and animals of a particular area
Answer:
Chromosomes at the conclusion of Meiosis I - 
Double-helical molecules of DNA at the conclusion of Meiosis I - same as that of parent cells
Explanation:
Given
Number of chromosomes in the diploid cells of Aliens from the planet Zorg 
In the Meiosis I cell division , a cell divides to produce two diploid cells with exactly the same amount of DNA as that of original parent cell.
However, the number of chromosomes is reduced to by half at the end of meiosis I
After Meiosis II, four haploid cells are produces with half the amount of DNA as that of original parent cell
Thus,
Chromosomes at the conclusion of Meiosis I - 
Double-helical molecules of DNA at the conclusion of Meiosis I - same as that of parent cells