Olmecs are considered to be a mother culture because they are the ancestors of numerous other groups and civilizations that arose later in the Americas. They lived as early as 1500 B.C.
Answer:
The sex ratio is the ratio of males to females in a population.
Explanation:
It is generally divided into four subdivisions:
primary sex ratio — ratio at fertilization
secondary sex ratio — ratio at birth
tertiary sex ratio — ratio in sexually mature organisms
quaternary sex ratio — ratio in post-reproductive organisms
Answer:
<u>Normal blood pressure.</u> Your blood pressure is normal if it's below 120/80 mm Hg.
Elevated blood pressure. Elevated blood pressure is a systolic pressure ranging from 120 to 129 mm Hg and a diastolic pressure below 80 mm Hg. Elevated blood pressure tends to get worse over time unless steps are taken to control blood pressure.
Stage 1 hypertension. Stage 1 hypertension is a systolic pressure ranging from 130 to 139 mm Hg or a diastolic pressure ranging from 80 to 89 mm Hg.
Stage 2 hypertension. More severe hypertension, stage 2 hypertension is a systolic pressure of 140 mm Hg or higher or a diastolic pressure of 90 mm Hg or higher.
Answer:
An aboriginal skeleton that was discovered in 2012 on the banks of Darling river in Tootale National Park is known as Toorale Man. The skeleton's facial bones were damaged and had deep and fatal wounds. The wound stretched from the forehead to the mouth.
Initially, it was believed that the wound was caused by metal blades and the man died in the violence between the aboriginals and European settlers. But the radiocarbon dating revealed that the man died much earlier, almost 700 years ago. It raised several questions about the use of metal by aboriginals because metal arrived in Australia with Macassan Fisherman in the north and then with the European settlement.
His skull was lying on a washed pile of sand and was arranged in a fetal position and his skull was sticking out.
