Ecologists make models to gain insight into complex phenomena such as the effects of global warming on ecosystems.
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Answer: egocentric thought
Explanation:
he is only thinking of his self
Segments of DNA that contain the code for specific proteins are called genes
It’s the first one for sure
A
It is used to represent the number of atoms in the element. H2O is 2 Hydrogen molecules and one oxygen molecule, however we don’t wright the 1.