Energy flows through an ecosystem.
hope this helps :)
But roughly 2.45 billion years ago, the isotopic ratio of sulfur transformed, indicating that for the first time oxygen was becoming a significant component of Earth's atmosphere, according to a <span>2000 paper in Science</span>. At roughly the same time (and for eons thereafter), oxidized iron began to appear in ancient soils and bands of iron were deposited on the seafloor, a product of reactions with oxygen in the seawater."What it looks like is that oxygen was first produced somewhere around 2.7 billion to 2.8 billon years ago."It looks as if there's a significant time interval between the appearance of oxygen-producing organisms and the actual oxygenation of the atmosphere."
A punnet square is a chart to help figure out the possible genotypes of two organisms' offspring.
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A food web is multiple food chains that connect to each other while a food chain is just one path
Inside the egg are a series of fluid-filled membranes which permit the embryo to survive,the amnion allantois yolk sac, and chorion. Surrounding and protecting the embryo is the amnion, filled with amniotic fluid and providing the embryo with a stable fluid environment.
