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In order to survive. By the time the blood reaches the placenta there is a lower concentration of oxygen in the blood, the fetal haemoglobin has a higher affinity for oxygen so that the hb can bind to oxy...

What we should know is that the root 3+4i is a complex number that looks alot like a+bi.

We can say : rt(3+4i) = a+bi (Where we dont know what a & b is..yet)

and when we square both side...

Ideally to find the exact area under the curve, we would integrate the function and substitute in the bounds given. However, using the trapezium rule gives an approximation whereby using more trapezia inc...

Rhodopsin is the pigment found in rod cells, which consists of cis-retinal and the protein opsin. When the rod cells are kept in darkness, the opsin is uncoupled from the cell surface membrane of the rod ...

The sinoatrial node is a region found on the right atrium which acts as a pacemaker. Cells at the SAN can depolarise (become more positively charged with respect to the outside) and generate electrical ac...