0
In the Proterozoic, 2.5 billion years ago, but these were not advanced modern algea, but primitive Cyanobacteria. Cyanobacteria still exist today, but in their heyday, they were the dominant form of life on Earth, and may be been the first to form colonies. Over about 1 billion years, they produced the bulk of the free oxygen in our atmosphere, poisoning they own environment and setting the stage for modern plants and animals to take over.
We owe them our lives, for without them, all oxygen would be bound up in the rocks as it is on Mars.
What else can I help you with?
When did the first marine plants appear on earth?
the first plants appeared about 3000 years ago. the first plant was algae.
Why does algae appear green?
Because it contains chlorophyll - which has green pigment in it.
Why do plants and algae appear green?
Plants and algae appear green because they contain a pigment called chlorophyll. Chlorophyll absorbs sunlight during photosynthesis, which is the process that allows plants to produce their own food. The green light is not absorbed by chlorophyll, giving plants and algae their green color.
How do algae and fungi benefit each other?
Algae provide photosynthetic products like sugars to fungi, while fungi provide nutrients and protection to algae. This mutualistic relationship is known as a lichen, where the algae live inside the fungal structure. Together, they can survive in harsh environments such as bare rock surfaces.
Is spirogyra blue green algae?
i dont know i m a student of class 9 and i m searching for the answer for - diff. b/w spirogyra and blue green alga
What were the first creatures to appear on earth?
well the first thing was algae...and formed from there on
What happened in 3 billion bc?
Those were the First signs of primeval life (bacteria and blue-green algae) appear in oceans.
When did the first marine plants appear on earth?
the first plants appeared about 3000 years ago. the first plant was algae.
Why does algae appear green?
Because it contains chlorophyll - which has green pigment in it.
Why is there algae at the bottom of the pool after shocking it?
Algae can appear at the bottom of a pool after shocking it because the shock treatment can kill off algae and other organic matter, causing it to sink to the bottom.
Why do plants and algae appear green?
Plants and algae appear green because they contain a pigment called chlorophyll. Chlorophyll absorbs sunlight during photosynthesis, which is the process that allows plants to produce their own food. The green light is not absorbed by chlorophyll, giving plants and algae their green color.
What color is a fire algae are?
Fire algae typically appear red or orange in color due to the presence of pigments called fucoxanthin and phycoerythrin. These pigments help the algae absorb specific wavelengths of light for photosynthesis.
What were the first plants on the planet?
The first plants were algae .
Did animal appear first or did plant appear first?
Scientists believe that animals evolved from single-celled organisms in the oceans around 600 million years ago, making them the first to appear. Plants, on the other hand, evolved from ancient algae and appeared on land around 450 million years ago.
What was the very first food on earth?
mushrooms, marine algae, freshwater algae, other botanicals
Does the Sea ever appear to be Pink?
yes, during "red tide" which is when a certain species of algae blooms.
Algae the first group of flowers were?
angiosperms
