As heart rate increases, blood pumps faster through your body and you start to have better reflexes. You brain sends out signals to your legs. This can be an example of the flight or fight response. Your leg and arm muscles tighten up, blood is decreasing from lesser needed spots such as your chest, back, and head areas.
Karyotype is written in the form: No. of chromosomes, sex chromosomes
As, we know there are 46 chromosomes in humans & sex chromosomes may be XX for females & 'XY' for males so, we can write it as:
(46, XX) or (46, XY)
There could be some anomalies though. So, for more appropriate answer, you should put your options!
Hope this helps! Pm me in case of doubt! Happy Studying :)
The process by which metabolic waste is eliminated from an organism.
The movement of one of the transported substances up its concentration gradient
Answer:
<em>Geographic isolation</em>
Explanation:
Geographic isolation can be described as a term that describes the model of speciation in which a biological population becomes isolated from other members of the population and can no longer have gene flow with them.
The same scenario of gene isolation is occurring in the species of taods which live at the top of the mountains in southern Arizona. This population has become reproductively isolated fro all other species of toads within the mountain range.