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Shkiper50 [21]
3 years ago
8

The oxygen build-up in the atmosphere was caused by

Biology
1 answer:
Y_Kistochka [10]3 years ago
3 0

Answer:

Actually, The answer is tiny organisms known as cyanobacteria, or blue-green algae. These microbes conduct photosynthesis: using sunshine, water and carbon dioxide to produce carbohydrates and, yes, oxygen. "What it looks like is that oxygen was first produced somewhere around 2.7 billion to 2.8 billon years ago. Harmful cyanobacteria blooms may affect people, animals, or the environment by: y blocking the sunlight that other organisms need to live. Cyanobacteria blooms can steal the oxygen and nutrients other organisms need to live. y making toxins, called cyanotoxins.

Explanation:

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3 years ago
Based on the research of philip reno, early hominins show reduced sexual dimorphism. what is this evidence of?
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<h3>What do you understand by Pair bonding?</h3>

Pair bonding is a high level trademark and may expect an essential part in age, and moreover in individual and species endurance.

A pair bond is the strong enjoying that makes in a couple of creature bunches between a couple containing a male and female, or on occasion as an equivalent sex mixing, perhaps provoking conveying any kind of family down the line or possibly a well established bond.

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