reproduction

• What does MRS NERG stand for?


  M - movement

  R - respiration

  S - sensitivity

  N - nutrition

  E - excretion

  R - reproduction

  G - growth
• What is sexual reproduction?


  The combination of two sets of genetic material/information from two different sex cells to form a new living organism
• Where is the genetic information stored in organisms?

  In genes, in the DNA and in the nucleus of a cell
• What is the testes?


  It produces the male sex cell - the sperm
• What is the penis?


  It places the sperm in the body of the female and protects the urethra
• What is the urethra?


  It takes either semen or urine outside the body
• What is the scrotum?


  It holds the testes outside the body to control the temperature
• What is the epididymis?


  It stores and matured the sperm cells
• What is the vas deferens/sperm duct?


  It carries the sperm from the testes and epididymis to the urethra
• What is the seminal vesicles, prostate gland and cowper's gland?

  It produces seminal fluid which nourishes the sperm and allows them to swim. Sperm and seminal fluid together are called semen.
• What is the ovary?


  It stores egg cells and it is where they develop
• What is the fallopian tube (oviduct)?


  It takes the sex cell from the ovary to the uterus, where fertilisation takes place
• What is the clitoris?

  It is the organ of sexual arousal
• What is the cervix?

  It is the lower part of the uterus that opens to the vagina
• What is the vagina?


  It is the organ of sexual intercourse and birth canal
• What is the uterus?


  It is where an embryo can develop into a fetus
• What is the vulva?

  It is the external genitalia including the labia
• What is puberty?

  It is the period when adolescents reach sexual maturity and can reproduce. It usually occurs between about ages 12 - 18.
• What are some changes that typically occur in females and males puberty?

  Male and female:

  Pubic hair grows, hair grows under arms, tends to have a growth spurt, 

  Female:

  Hips widen, start to menstruate, breasts develop, voice can get deeper

  Male:

  Voice deepens, shoulders get wider, begin to produce sperm, hair grows on the face
• What causes changes in puberty?

  Changes in hormones
• What are the male and female sex cells (gametes) called?

  Male: sperm cell

  Female: egg cell