It is called a Double Helix.
Answer:
cell
Explanation:
definition its basic unit of life
Answer:
Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density). This change of direction is caused by a change in speed. When light travels from air into water, it slows down, causing it to change direction slightly. This change of direction is called refraction
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Answer:
The hole is lack of knowledge of the concept of natural selection, especially its physical properties and how it operates.That is what made those organisms with fitted traits to resit the selective pressures and therefore survive than others with less resistance .
Basically,he lacked the knowledge of the concept of variation as the driving mechanisms of natural selection he theorised. Darwin did not understand how variation among different species of organisms physically emerged to made these organisms resistant to the selective pressure, and therefore emerge as the survival of the fittest in the population.
Explanation:
