Answer: B
Explanation: The amount of salt in the inner circle is equal to the amount of salt in the outer circle.
They are both the building blocks of life
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.
Diversifying selection, describes changes in population genetics in which extreme values for a trait are favored over intermediate values. The variance of the trait increases and the population is divided into two distinct groups. In the above question an example of diversifying selection is A population of moths with white and grey forms lives in a forest containing trees with light and dark bark.
Breathing is an automatic and rhythmic act produced by networks of neurons in the hindbrain (the pons and medulla). The neural networks direct muscles that form the walls of the thorax and abdomen and produce pressure gradients that move air into and out of the lungs.
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