Yes we did we had microbes before we were born
A and C both seem like valid answers.
Answer:
Organisms get larger and develop into different stages of life >> Growth and development
Heal wounds, replace damaged cells >> Replace cells
Organisms make more of the species to keep them from going extinct >> Reproduction
Explanation:
Growth refers to the irreversible process by which organisms/tissues/cells increase in size and mass. Moreover, development can be defined as the progression from earlier to later maturation stages (e.g. fertilized ovule develops into a seed that will produce a mature tree). Cell replacement is a natural mechanism that occurs when cells become aged or in response to external/internal damage. During cell replacement, cells are produced from other cells by cell division. Finally, reproduction is a key biological process by which organisms (called parents) produce new genetically related organisms (i.e., offspring). According to the mode of transmission of genetic information, reproduction can be divided into sexual reproduction (offspring are different from parents) and asexual reproduction (offspring are the same as parents).
Antibiotics are ineffective in treating viral infections because Antibiotics kill only living cell. Antibiotics treat bacterial infections but not viral infections. Foe example, an antibiotic is an appropriate treatment for step throat, which is caused by the bacterium Streptococcus pyogenes. However, it is not the right treatment for most sore throats, which are caused by viruses.
