Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency.
All the other cases; answers, here aren't correct and don't apply.
I believe B is the answer..
Covalent bonds is important in four macromolecules such as proteins (polymers of amino
acids), nucleic acids (polymers of nucleotides), carbohydrates (polymers of
sugars) and lipids (with a variety of modular constituents) because they served
as a basic structure of macromolecules.
In addition, the resulting covalent bond is a result
of sharing a pair of electrons, one from each atom or molecular units.
The characteristics that suit a species for survival are transmitted from one generation to the next through genes which are the units of hereditary information.
<h3>What is a Gene?</h3>
This is referred to as the basic functional unit of heredity and is composed of DNA which are passed from the parent to the offspring.
This is done through the process which is known as meiosis in which four unique daughter cells are produced.
This is therefore how characteristics that suit a species for survival are transmitted from one generation to the next through the gene and is the most appropriate choice.
Read more about Gene here brainly.com/question/19947953
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Question 8 is the 3rd bubble
question 9 is the 2nd bubble
