Humans have always interbread with other groups and tribes, but grazing animals don't do that, so It is much easier to estimate it.
Answer:
Evolution is a scientific theory used by biologists. It explains how living things change over a long time, and how they have come to be the way they are. ... It is known that living things have changed over time, because their remains can be seen in the rocks. These remains are called 'fossils'.
<span>Chest
compression can save the lives of patient in cardiac arrest as it generate a
small but critical amount of blood flow to the heart and brain. It provides
oxygen quickly to the brain, heart, lungs and other organs until normal
function of the heart and lung restored. When the patient is unresponsive without
definite pulse or normal breathing then the responder should assume that the
patient is in cardiac arrest. CPR or chest compression is used to keep oxygen
circulating around the body until a defibrillator can be used or until the
ambulance arrives. Moreover, defibrillator is a device used to help blood flow
in order to help the patient survive or recover from cardiac arrest. This
procedure can momentarily stops the heart and the chaotic rhythm and often
allows the normal heart rhythm to resume. However, chest compression be given
when the patient has no pulse while CPR is performed when the patient is
unresponsive, not breathing and has no pulse.</span>
Answer:
It was the revolution which occurred in October 1917. It was led by Petrograd Soviet and the Bolshevik Party under the leadership of Lenin. A military Revolutionary Committee was appointed by the Soviet under Leon Trotskii to organise the seizure
