There are 4 thing that need to happen for natural selection to occur:
1) reproduction
2)heredity
3)variation in fitness or organisms
4)variation in individual characters of the population.
I think the correct answer from the choices listed above is option C. The purpose of a controlled experiment is to examine whether one variable causes a change in another. A<span>n independent variable is the only factor that is allowed to be adjusted, with the dependent variable as the factor that the independent variable will affect.</span>
<em>The term</em><em> geotropism</em><em> describes how plants respond to gravity. </em>
<em>Mark as brainliest please.</em>
<span>The major benefits to replacing fossil fuels with solar panels and wind turbines to meet our energy needs would be </span><span>Wind and solar power are renewable resources and do not contribute to climate change.
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Renewable resource is much better for long term result because it wouldn't damage the environment and we can utilize it indefinitely. </span>
C. Wind turbines are more reliable then solar cells.
