Hello.
The answer is <span>Passive transport.
</span>The movement of substances<span> in and out of a </span>cell<span> membrane </span>without the use of energy<span> by the </span><span>cell.
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The planets in our solar system orbit the sun because of its large gravitational force just like how the moon orbits earth
Mendel proposed the law of segregation and the law of independent assortment toexplain the inheritance behind his pea plant traits. A hundred years later, Boveri and Sutton developed the chromosome theory of inheritance, which stated thatchromosomes were responsible for the heredity Mendel observed.