Question

The human body system responsible for long term processes such as growth and sexual development of the body is known as
A) Endocrine system
B) Reproductive system
C) Integumentary system
D) Circulatory system
E) Lymphatic system

Answer 1

The human body system as we know, holds a complex set of systems and each system has a different set of organs and mechanisms, requirements based on their specific activities required to perform all the daily life things or functions. Every system targets or holds its individual organ which maintains and performs the activities, which help the human body to function well.

Complete answer:
Option A) Endocrine system: The endocrine system coordinates and also regulates our physiological functions of the body. It consists of particular sets of organs or glands known as “endocrine glands”.
The endocrine glands do not have ducts and hence they are also called ductless glands. They provide secretions called hormones which are essential for growth and for the proper coordination of the body.
Hormones are non-nutrient chemicals which act as intracellular messengers and they are produced in our body in trace amounts.
It also helps in the sexual development of the body. Hormones like thyroxine secreted from thyroid gland helps in maintaining homeostasis (temperature control) of our body.
Hormones like estrogen (female hormone) and testosterone (male hormone) are secreted by gonads which are the part of the endocrine system only.
So, option A is correct.
Option B) Reproductive system: The reproductive system is an essential system of our body. As we have discussed, hormones are released and synthesized in endocrine glands so after attaining the maturity of glands such as ovary, uterus in female body and in male testicles, the offspring production is to happen.
Both the male and female systems comprise the reproductive system. Their regulation, working is all under the system.
Sole purpose of the reproductive system is to produce progeny and continue the lifeline.
It is basically of two modes- Asexual reproduction and sexual reproduction.
Asexual reproduction is generally carried out by lower organisms like bacteria, protists, fungi etc.
Sexual reproduction occurs in higher organisms like human beings, animals, plants also.
So, option B is not correct.
Option C) Integumentary system: Integumentary system is the system where it separates the body inner lines where all the major organs lie from the outer environment or surroundings.
It serves to protect the organs from the external environment.
Example- skin, nails, body hair are the organs which protect from the invaders or pathogens which can cause illness in the body.
Internal organs are protected by muscles, tissues, and bones which hold the bigger organs from damage.
Blood acts as a medium, bones hold the position of organs in place and muscles keep organs intact.
So, option C is not correct.
Option D) Circulatory system: We have discussed that the circulatory system is as important as any other system. It holds the major organ called Heart, blood vessels that are veins, arteries.
It helps in transportation of gases in our body.
We know that we inhale and exhale gases like oxygen and carbon dioxide which are carried to and pro from veins and arteries.
So, option D is incorrect.
Option E) Lymphatic system: lymphatic system performs functions like balancing of fluids in body, fat absorption and provide also defense mechanism in body.
So, option E is not correct.

So option A) is the correct answer.

Note:
As we have discussed above, there are a total fourteen systems in our body such as cardiovascular system, skeletal system, reproductive system, endocrine system, digestive system, integumentary system, excretory system and so on.
Each system has its own importance and without any system our body can not perform or function well.
The consequences or complications if occurs to any of these system holding organs can be fatal also resulting in loss of life.