Answer:
Nucleus, Chromosomes, Gene, Base
Explanation:
Nitrogen bases make up DNA. Genes are located on your chromosomes which are made of spools of protein and DNA. The chromosomes are located in the nucleus.
Answer:
A condom is a sheath-shaped barrier device used during sexual intercourse to reduce the probability of pregnancy or a sexually transmitted infection.
Explanation:
its uses are given above
Answer:
Sympathetic nervous system
Explanation:
The sympathetic nervous system is the part of the autonomic system of neurons which gets activated in the condition of stress.
The stress conditions activate the sympathetic nervous system which prepares the human body for the stress condition by either fight or flight mode.
The fight or flight responses requires a large amount of energy which are produced by the activation of the parasympathetic energy therefore the sympathetic system involves the expenditure of the energy. The system is also involved in sexual arousal.
Thus, the Sympathetic nervous system is the correct answer.
