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The Permian started 290 Mya (million years ago). Before it was the Carboniferous.
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How long ago did the Permian era begin?
According to the 2012 Geologic Time Scale the Permian Period of the Paleozoic Era lasted from about 298.9 million to 252.2 million years ago. It is the last (latest) period of the Paleozoic.
Does twins start there period at the same time?
Genetics aren't the only thing to influence when girls start their period. It's entirely possible that one twin starts her period before the other (even if they are identical).
Did the K-T extinction occur before or during the Tertiary period?
The Tertiary Period (65.5 to 2.588Ma) is the informal name for the geological period that followed the K-T extinction event. So the K-T event happened before the Tertiary. In fact "K-T" is actually short for Cretaceous-Tertiary as it marked the end of the Cretaceous and the start of the Tertiary.The lower tertiary is more formally known as the Paleogene Period(65.5 - 23.03 Ma) and the upper Tertiary is more formally known as the Neogene Period(23.03 - 2.588Ma).
How old was the universe when the big bang thory happened?
Events in the Universe are often dated from the Big Bang. But the fact is, NOBODY KNOWS what (if anything) happened before the Big Bang. The Big Bang MAY have been the start of time itself; but it is possible that the Universe existed (in some form) forever in the past.
How does a hypothesis start?
By thinking what's going to happen before you start something
What are the chances a girl is pregnant if she gets her period late and it ends early?
I have before my period, I start my period for 3 days then My period was stop after my period for 3 days, I want to know what happened to me?
Do you start your period before you get your breasts?
Depends, but usually Ur boobs start growing first well atleast for me that's wat happened
How long ago did the Permian era begin?
According to the 2012 Geologic Time Scale the Permian Period of the Paleozoic Era lasted from about 298.9 million to 252.2 million years ago. It is the last (latest) period of the Paleozoic.
Can the death of a close family member that happened 1 week before you were supposed to start your period prevent you from getting your period that month?
It's possible. Stress can cause ovulation to be suppressed, but that would've been two weeks before you were supposed to get your period.
How long before your period do you get signs of having a period?
Usually you get PMS symptoms about a week before your period is due to start.
Can you get pregnant if you are 12 years old and you have never have a period?
Before you start to bleed you ovulate so yes, you can get pregnant before you start to bleed. You will not know if you are in your period before you bleed.
What main things would travelers might see in the permian time period?
The Permian period was 230 to 280 million years ago. Travelers during this time period would have been able to witness the start of the Alps, the Appalachian, and the Rocky Mountains. There were many massive sand dunes throughout much of the United Kingdom and the United States that were transitioning into sandstone formations. Insects and amphibians were rich throughout the Carboniferous area.
When did the triassic period take place?
The Triassic was from about 225 million to 190 million years ago. It is the first period of the Mesozoic ("middle life") Era.The Triassic Period is most commonly believed to have begun 251 million years ago and lasted until 199.6 million years ago.
Is it possible for a child to get pregnant before they start their period?
Yes, women ovulate BEFORE each period, so even before the first time we have our period, we ovulate. There is always that chance that they are about to start. (Ovulating is when the egg comes down)
What does six days before your missed period mean?
It means that if your period is supposed to start on Saturday, 6 days before your missed period would be the Tuesday before.
What triggers your period to start?
If you have never had your period before, than your period will start when your body is ready. That is proberly why some of yoour school mates (assumed) start at different times.
When do you start avulation?
2 weeks before your period
