Gene, Chromosome, DNA, Nucleus, Cell, Organism
Answer:
Thirst is controlled by centers in the hypothalamus and triggered by increased osmolarity.
Explanation:
I'd say your right with the choice of calf.
:)
There are several stages but the crossing over starts on the second stage. And the actual crossing sides happens on the following stage. Hope this helped :)
The presence of two deltas indicates a 'plain whorl', a common thing that 24% of people have in common.