Yes that is true but whats your question may I ask?
Answer:
The answer is gravity!
Explanation:
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The adaptive radiation of the mammals occured mostly during the Cenozoic period.
<h3>What is adaptive radiation?</h3>
Adaptive radiation is a rapid increase in the number of species with a common ancestor, characterized by great ecological and morphological diversity.
<h3>What is Cenozoic period?</h3>
The Cenozoic is Earth's current geological era, representing the last 66 million years of Earth's history. It is characterized by the dominance of mammals, birds and flowering plants.
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Answer:
Microbes are everywhere in the biosphere, and their presence invariably affects the environment that they are growing in. The effects of microorganisms on their environment can be beneficial or harmful or inapparent with regard to human measure or observation.