Question

Which of the following is exclusive feature observed in human beings ?​

Answer 1

Answer:

Unique Characteristics of Eukaryotic Cells | Microbiology

Answer 2

Perception of events happening in the environment and their memory

Although some nonliving things like mountains, sand mounds, crystals also grow, their growth is due to the addition of matter from outside. Hence, statements B and D are incorrect.

- All organisms respond to external stimuli which can be physical, chemical or biological. This is called irritability. Stimuli are perceived by sense organs in animals but plants can respond to external factors like water, temperature, light etc. All organisms from prokaryote to the most complex eukaryotes can sense and respond to environmental events.