endocrine system

• What hormones are produced from the pituitary gland?

  • Many hormones
  • These hormones act on glands, directing them to release hormones that bring about change
• What hormones are produced in the ovaries?

  • Oestrogen, which is involved in the menstrual cycle
• What hormones are produced in the testes?

  Testosterone
• What hormone are produced in the thyroid gland?

  Thyroxine (regulates rate of metabolism, heart rate and temperature)
• What is the hormone produced in the adrenal gland?

  Adrenaline (used to prepare the body for fight or flight)
• What hormone is produced in the pancreas?

  • Produces Insulin (controls blood glucose)
• What is an advantage of sexual reproduction?

  • There is a mixture of two sets of chromosomes.
  • Produces variation in the offspring
• Why is variation an advantage?

  • Increases the chance of a species surviving a change in the environment. (survival advantage)
• what is an advantage of asexual reproduction?

  • There only needs to be one parent
• Why is having one parent an advantage

  • Uses less energy, because organisms don't have to find a mate
  • Meaning this is a faster process
• what is another advantage of asexual reproduction?

  • Many identical offspring can be produced in favourable conditions