What theory was Huygens writing about?

Natural selection acts on populations through a specific trait. which statement must be true about that trait? question 6 options: the trait is passed on genetically to the next generation. the trait has little impact on survival. the trait is the same for all organisms. the trait is resistant to mutations.

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above

Which organelle breaks down sugar molecules that supply energy to the cell ?