B they are <span>used for the process of gene transfer</span>
Answer:
D, organisms that survive long enough to reproduce.
Explanation:
C and D are the best answers. Adaptations and skills other than speed and strength contribute to an organism's survival too, so that means it isn't C. Natural Selection is about how an organism must have useful traits to survive to reproductive stage and successfully reproduce, so it would definitely be D.
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Hydrosphere- encompasses all marine environments.
Lithosphere- encompasses all terrestrial environments
Atmosphere- encompasses all areal environments
Biosphere- how the previous three spheres all combine to make the Earth
