Answer:
1. The correct answer is option C.
The universal characteristics of the life are: maintain homeostasis, composed of one or more cells, metabolism, and respond to stimuli.
Atoms are present in organic as well as inorganic things.
2. The most appropriate answer is option A
The main objective of life is to copy and transmit genetic material to the next generation.
3. The correct answer is option D
The hierarchy of life is cell-tissue-organ-organ system-organism-population-community-biosphere
4. The correct answer is option C
Automatic doors close and open when they detect the motion or presence of a person or thing in their detecting range. Presence or movement of person or thing is similar to environmental stimuli and opening or closing or door is like response created for that stimuli.
5. The correct answer would be option B
The hierarchy is given in the answer 3
