1.
Composed of glands that secrete different types of hormones.
Correct Answer
B. Endocrine System
Explanation
The endocrine system is composed of glands that secrete different types of hormones. These hormones are responsible for regulating various bodily functions, such as metabolism, growth and development, reproduction, and mood. Unlike the nervous system, which uses electrical signals to transmit information, the endocrine system uses hormones to communicate messages throughout the body. The reproductive system is primarily involved in the production of offspring, while the circulatory system is responsible for the transportation of blood and nutrients. Therefore, the correct answer is the endocrine system.
2.
Stimulates growth, and controls the functions of other glands.
Correct Answer
C. Pituitary glands
Explanation
The pituitary gland is often referred to as the "master gland" because it regulates the functions of other glands in the body. It produces and releases hormones that stimulate the growth and development of various tissues and organs. Additionally, the pituitary gland controls the functions of other endocrine glands, such as the thyroid gland, adrenal glands, and pancreas, by secreting hormones that stimulate or inhibit their hormone production. Therefore, the pituitary gland plays a crucial role in maintaining overall hormonal balance and controlling various bodily functions.
3.
Regulates blood sugar levels.
Correct Answer
D. Pancreas
Explanation
The pancreas is responsible for regulating blood sugar levels. It produces insulin, which helps to lower blood sugar levels, and glucagon, which helps to raise blood sugar levels. This balance is important for maintaining stable blood sugar levels and preventing conditions such as diabetes.
4.
Prepares the body for action, and controls the heart rate and breathing in times of emergency.
Correct Answer
C. Adrenal glands
Explanation
The adrenal glands are responsible for producing hormones that help prepare the body for action and control the heart rate and breathing during times of emergency. These hormones, such as adrenaline, increase heart rate and blood pressure, dilate airways, and increase blood sugar levels to provide the body with energy for fight or flight responses.
5.
Enables the body to produce certain antibodies.
Correct Answer
A. Thymus glands
Explanation
The thymus glands enable the body to produce certain antibodies. The thymus is a small organ located in the chest, and it plays a vital role in the development and maturation of T-lymphocytes, which are a type of white blood cell. These T-lymphocytes are responsible for recognizing and attacking foreign substances in the body, such as bacteria and viruses. The thymus produces hormones that stimulate the growth and differentiation of these T-lymphocytes, allowing them to become fully functional and capable of producing antibodies to fight off infections.
6.
System involved in sexual reproduction.
Correct Answer
C. Reproductive System
Explanation
The reproductive system is the correct answer because it is the system that is directly involved in sexual reproduction. This system includes organs such as the testes, ovaries, uterus, and fallopian tubes, which are responsible for producing and transporting reproductive cells (sperm and eggs) and facilitating fertilization and pregnancy. The other systems listed (nervous, endocrine, and circulatory) are important for overall bodily functions but are not specifically involved in sexual reproduction.
7.
Serves as passageway of eggs from the ovary to the uterus; site of egg fertilization.
Correct Answer
C. Oviduct/Fallopian Tube
Explanation
The oviduct, also known as the fallopian tube, serves as a passageway for eggs from the ovary to the uterus. It is also the site where fertilization of the egg by sperm takes place.
8.
Deposits sperms into the vagina during mating.
Correct Answer
B. Penis
Explanation
The correct answer is "Penis". The penis is the male reproductive organ that deposits sperm into the vagina during mating. It is responsible for delivering sperm into the female reproductive system to fertilize the egg and initiate pregnancy.
9.
Serves as site of egg implantation, is where the fertilized egg develops.
Correct Answer
D. Uterus
Explanation
The uterus serves as the site of egg implantation and is where the fertilized egg develops into a fetus. It is a hollow, muscular organ located in the female reproductive system. The fertilized egg travels through the fallopian tubes and implants itself into the lining of the uterus. The uterus provides a nourishing environment for the developing embryo, with its thick, muscular walls capable of expanding to accommodate the growing fetus during pregnancy.
10.
Sac of skin that holds the testis.
Correct Answer
D. Scrotum
Explanation
The scrotum is a sac of skin that holds the testis. It is located outside the body in order to maintain a lower temperature for proper sperm production. The scrotum contracts and relaxes in response to temperature changes, helping to regulate the temperature of the testis. This is important for the viability and production of sperm.