The correct answer is:
The student is correct; amoebas are alive because they reproduce even though it is different than traditional sexual reproduction.
Amoebas may be unicellular, but they are still considered living organisms because they carry out essential life functions such as reproduction, growth, and response to stimuli. While they do not engage in traditional sexual reproduction involving male and female contributions, they are capable of asexual reproduction through cell division, which allows them to create new cells and continue their life cycle.