Considering the structure and function of the human heart, why are the walls of the ventricles much thicker than the walls of the atria

The energy needs of a human population are not affected by

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound