Answer:
oxygenation of the atmosphere
Explanation:
The "Great Oxidation Event" was one of the most important things happening on this planet. Without it, there could never be animals breathing oxygen, like insects, fish, and certainly humans. Moreover, this moment of our planet was one of the main responsible for the evolution of eukaryotes.
For decades, scientists have worked to understand how and why oxygen emerged. And they suspect that life itself was responsible for creating the air we breathe.
The latest findings suggest that life was undergoing a tremendous transformation before the "Great Oxidation." An evolutionary leap that helps explain what we know today.
Formed 4.5 billion years ago, the Earth, at the time of the Great Oxidation, was already inhabited. But only by unicellular organisms. It is not exactly clear when life began on the planet, but the oldest fossils of these microorganisms date back at least 3.5 billion years ago. This suggests that life had existed on earth almost 1 billion years before the "Great Oxidation." From the moment oxygen spread through the atmosphere, it was possible for these organisms to evolve into more complex life forms.
Answer:
True
Explanation:
Different air pressures zones in a area creates a stream of wind. Though, it isn't visible, air pressure affects the weather pattern to a great extent. Rising air creates low pressure while sinking air creates high pressure.
I believe it is the circulatory system, although I'm not entirely sure
The right option is; B) multipotent
This kind of stem cell is multipotent stem cells
Multipotent stem cells are unspecialized cells that have the capacity to renew themselves by differentiating into multiple specialised cell types that has specific functions. Almost all adult stem cells are multipotent stem cells. Examples of multipotent stem cells can be found in the bone marrow where they differentiate, and develop to all blood cell types but not other cells.
Answer:
Botany
Explanation:
Botany is the scientific study of plants, including their physiology, structure, genetics, ecology, distribution, classification, and economic importance.