What is the fate of this line,"The first organisms who invaded the Earth were Plants"

Q. Read the following statements and select the correct ones.

Statement (i): Giant ferns, the pteridophytes, were present during the Mesozoic era but fell to form coal deposits slowly.
Statement (ii): The multicellular organisms divided to form single-celled organisms.
Statement (iii): First organisms that invaded land were plants.

Q. What were the first organisms on earth?

Q. Who among the following were the first Muslim invaders of India?

Q. When Alexander invaded India, who were the rulers of Magadha?