Question:

A horse lives for

Updated On: Apr 2, 2024
  • 15 years
  • 20 years
  • 35 years
  • 50 years
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The Correct Option is D

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The correct option is (D): 50 years
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Explanation:

  • The average lifespan of a horse is between 20 and 35 years. However, a horse can live for more than 40 years if properly taken care of.
  • A horse is considered an adult by the age of 5.
  • The first stage of a horse's life is known as a foal, which lasts up to 1 year.
  • When a horse reaches the age of 15 to 18 years, it is considered to be in its senior stage.
  • Horses above the age of 20 years are considered adult horses. 
  • The oldest horse, Billy, was bred in Lancashire, UK, and lived up to 62 years.
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Concepts Used:

Human Reproduction

Reproduction in human beings involves the fusion of male and female gametes that produces in their reproductive system.

Male Reproductive System:

The male reproductive system comprises:

  • Testicles (testes): A pair of oval-shaped organs masked in a pouch known as the scrotum. They manage the production of sperms and the male hormone testosterone.
  • Scrotum: It is a sac-like organ that hangs under the penis and behind it. It is the house of the testes, or testicles, and maintains a temperature that is needed for the production of sperm by it.
  • Vas deferens: The sperms produced in testes are stored in a tube known as the epididymis. Here the sperms get matured and pass to the urethra via the muscular tube known as vas deferens.
  • Accessory glands: This includes three glands, namely the prostate gland, seminal vesicles, and Cowper’s gland. The secretions from the mentioned three glands mix to form a fluid known as semen. Semen nourishes the sperm, raises the volume, and helps in lubrication.
  • Penis: The penis is a cylindrical tube that serves as both an excretory organ, and a reproductive organ. It transfers sperms into the vagina during sexual intercourse.

Female Reproductive System:

The female reproductive system is active before, during, and after fertilization as well. It comprises the following parts:

  • A pair of ovaries: A pair of ovaries produce and stores ovum in them. They also produce a female hormone known to be estrogen.
  • Fallopian tubes (Oviducts): They are the area of fertilization. They connect both the ovaries with the uterus.
  • Uterus: Uterus is the place of development for the embryo.
  • Vagina: The part that connects the cervix to the external female body parts is called a vagina. It is the passage for the penis during coitus as well as a fetus during transfer.