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Venus and Mercury are the only planets in our solar system that do not have moons. Venus and Mercury have a gravitational pull that is weaker than the gravitational pull of the Sun, so they wouldn't be able to hold onto their own moon.
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human health disruption can occur when ecosystem services are no longer able to meet social needs
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3 bases make up a codon that specifies for a specific trait.
Phylogenetic trees show the evolutionary pathways and connections among organisms. A phylogenetic tree is a diagram used to reflect evolutionary relationships among organisms or groups of organisms.