Answer:
"survival of the fittest" means that animals or organisms that are best adapted to their environment are more likely to survive in that environment
If a scientist observes an enzyme polypeptide chain arranged in spiral turns that rise upward and are held in place by hydrogen bonds he/she is looking at a tertiary structural arrangement.
<h2>Resistance to antibiotics </h2>
Explanation:
Bacteria are single-celled organisms usually found all over the inside and outside of our bodies
- Antibiotic resistance is the ability of bacteria or other microbes to resist the effects of an antibiotic
- Antibiotic resistance occurs when bacteria change in some way that reduces or eliminates the effectiveness of drugs, chemicals, or other agents designed to cure or prevent infections,the bacteria survive and continue to multiply causing more harm
- There are two main ways that bacterial cells can acquire antibiotic resistance,one is through mutations that occur in the DNA of the cell during replication and the other way that bacteria acquire resistance is through horizontal gene transfer
- Through the process of replication bacteria develop mutations that make them resistant to antibiotics
- Bacteria with the resistant mutation have a better chance of survival against antibiotics
- Resistant bacteria continue to multiply even when exposed to antibiotics
- In horizontal gene transfer,antibiotic resistant genetic material is transferred between different bacterial cells which can happen in three different ways: transformation,transduction or conjugation
