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Q: Which first step in the orig in of the seed can already be observed in the pterophytes and lycophytes?
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The first pterophytes appered around?

375 Million years ago


The first pterophytes appeared around when?

The first fossils of pterophytes, also known as ferns, are known from the early Carboniferous, around 350 million years ago. The first modern families of ferns are known to have appeared during the Triassic.


The first pterophytes appeared around what?

1.5 billion years ago (bya)


The first pterophytes appeared around what year?

400 Million years ago hope this helps :D


What year was education month first observed?

when education month was first observed


What is the first plant cell found?

First cell observed was a cork cell.So it was the first plant cell observed.


Who observed the first non-living cell?

Robert Hooke observed the first non-living cell.


What was the first cell part to be observed?

The first cell part observed was the cell membrane, second was the nucleus.


What was the first piece of the Titanic found from the submarine?

The first part of her to be actually observed was one of her boilers, although sonar soundings had already revealed two masses of metal where the bow and stern sections lay.


What are some of the speciments that antonvon leeuwenhoek first observed?

Well Anton Van Leeuwenhoek first observed was bacteria.


Who observed the first living cell?

Anton Von Leeuwenhoek observed the first living cell in around 1674,although Robert Hooke observed a dead cell in 1663.


When were the first living cells observed?

The cells that were first seen were nonliving.