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DNA I think
What else can I help you with?
When did the first life forms appear on Earth?
Scientists think that the first life forms appeared on Earth about 3.6 billion years ago. These were simple cells that eventually evolved into the abundance of life we see today.
How do scientists think magma forms?
well magma is lava and its made from molten rock.
What are some characteristics you think scientists use to classify vertebrates and invertebrates into groups?
The presece of a vertebrate.
True or false Scientists think that the first life forms on earths probably did arise from nonliving materials?
True. Scientists believe that the first life forms on Earth likely arose from nonliving materials through a process known as abiogenesis. This theory suggests that simple organic molecules gradually evolved into more complex structures that eventually led to the development of life.
Why do you think that scientists have changed the classification system since it was first developed?
I think that scientists have changed the classification system since it was first developed because, the world has grew example technology and they wanted to update it. I also think scientists have changed the classification system since it was first developed to make it easier.
Why do scientists think that photosynthetic prokaryotes were not the first life forms on Earth?
Scientists suggest that photosynthetic prokaryotes were not the first life forms on Earth because the conditions on early Earth were likely not conducive to sustaining photosynthesis. It is believed that simpler forms of life, such as chemotrophic prokaryotes, which obtain energy through chemical reactions, may have been the first life forms to evolve. Over time, photosynthetic prokaryotes evolved as the environment changed and oxygen started accumulating in the atmosphere.
What modern organisms do scientists think the first cells resembled?
Bacteria were the first cells.
What human trait do scientists think early man had first?
I think it is ability to make tools
Many scientists think that DNA was the first genetic material?
yes
How do some scientists think people first came to north America?
you
Scientists think the first water vapor on Earth came from?
From the oceans
How do some scientists think the first people came to North America?
you
