Has one extra chromosome in each cell (i.e 47 instead of 4.6). This is caused by one of the cell divisions during the formation of sex cells. Basically, the 21st chromosome ends up with 3 chromatids instead of 2. This is also why down syndrome is called trisomy 21.
C-habitat, the community is all the species combined, the ecosystem is the community with al of the abiotic factors, and the niche is just the animals role in the ecosystem. The habitat is where it lives.
Answer: The Osteophyte is emanating from the Posterolateral Area of C2.
Explanation: The <em>Cervical Plexus</em> consists of 8 nerve roots, from <em>C1-C8</em>, and the Cervical Column consists of 7 vertebrae, from C1-C7.
The first nerve root (<em>C1</em>) emerges above the body C1 vertebra.
The second nerve root (<em>C2</em>) emerges below the body C1 and above C2's body vertebra.
The third nerve root (<em>C3</em>) emerges below the body of C2 and above C3's body vertebra.
The fourth nerve root (<em>C4</em>) emerges below the body of C3 and above C4's body.
The fifth nerve root (<em>C5</em>) emerges below the body of C4, and above the body of C5.
The sixth nerve root (<em>C6</em>) emerges below the body of C5 and above the body of C6
The seventh nerve root (<em>C7</em>) emerges below the body of C6 and above the body of C7.
The eighth nerve root (<em>C8</em>) emerges below the body of C7 and above the body of T1.
<span>jeremy's SUBSTANCIA NIGRA is producing less DOPAMINE than what it needs to.
Substancia nigra is a "black substance" located in the midbrain. When there is the death of dopaminergic neurons in the substantia nigra, the quantity of dopamine decreases, causing Parkinson symptoms. With time passing, the fewer neurons Jeramy will have and those symptoms will become more severe, that is the reason why is smoking more. The nicotine from cigarettes help modulate dopamine transmission and so, to reduce some symptoms.</span>
