A
Planting the same crop over and over again depletes the nutrients of the soil and it also allows any pests to get used to the soil. That’s why many people practice crop rotation.
Except internal intercostals
180 million years is the correct answer
Amino acids are the building blocks of proteins and can be arranged in many different ways to create different types of proteins. Proteins can contain any number of amino acids and they are all unique in their function.
Antibiotics cannot kill viruses because bacteria and viruses have different mechanisms and machinery to survive and replicate the antibiotic has no “target” to attack in a virus however antiviral medications and vaccines are specific for viruses
