They are known as Teratogens.
These substances are toxic and they harm the embryo. The harm may be psychological, physiological, or even both. They can come in all forms and even include simple things like alcohol which can cause the Fetal Alcohol spectrum disorder, or they can be complex things like radiation.
The correct answer is biological evolution.
Biological evolution refers to the procedure via which the features of species modify over consecutive generations, by means of natural selection and genetic variation. It is most usually illustrated as modifications in the frequencies of the gene in the populations.
Evolution by natural selection is one of the followed authenticated theories in the history of science, encouraged by proof from a broad kind of scientific disciplines involving geology, palaeontology, developmental biology, and genetics.
The amino acids can enter aerobic respiration pathways as what molecules as pyruvates.
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What are Proteins?</h3>
The body uses the large, complex molecules called proteins for a number of essential processes. They perform the majority of their work inside cells and are essential for the development, functionality, and regulation of the body's tissues and organs.
Proteins are made up of countless thousands of amino acids, which are the smallest units that make up proteins. Twenty different types of amino acids can be combined to form proteins. The arrangement of the amino acids determines the precise function and characteristic 3-dimensional structure of each protein. The order of genes determines the combinations of three DNA building blocks (nucleotides) that code for amino acids.
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