Asked by Fazena Jaikaran on May 16, 2024
Verified
What were some of the earliest forms of life on Earth?
A) land plants and insects
B) corals and other bottom-dwelling sea creatures
C) microscopic creatures that built mound-shaped structures called stromatolites
D) sharks
Stromatolites
Layered structures formed by the growth of microbial mats, often found in fossil form and considered some of the oldest evidence of life on Earth.
Microscopic Creatures
Tiny organisms that can only be seen with the aid of a microscope, including bacteria, protozoa, and some fungi and algae.
- Recognize different forms of life that have existed on Earth through different geological periods.
- Learn about the earliest forms of life and evidence for the development of an oxygen-rich atmosphere.
Verified Answer
PG
Pierre GerlenskeyMay 17, 2024
Final Answer :
C
Explanation :
The earliest forms of life on Earth were indeed microscopic organisms that contributed to the formation of stromatolites, which are layered, mound-shaped structures created by the growth of these microorganisms in shallow water environments. These structures are some of the oldest evidence of life on Earth, dating back to over 3.5 billion years ago.
Learning Objectives
- Recognize different forms of life that have existed on Earth through different geological periods.
- Learn about the earliest forms of life and evidence for the development of an oxygen-rich atmosphere.