2.2.1 Animal Growth

• What is the primary process driving animal growth?

  Cell division and differentiation
• What is the growth rate in exponential growth?

  Accelerating, rapid
• What is the role of proteins in animal growth?

  Cell growth and tissue repair
• What hormone stimulates cell division and growth in animals?

  Growth Hormone (GH)
• Growth Hormone (GH) stimulates the division and growth of cells
• What can result from imbalances or deficiencies in growth-related hormones?

  Stunted growth
• Animal growth is the process by which an animal increases in size or mass
• Match the growth type with its growth rate:

  Linear Growth ↔️ Steady

  Exponential Growth ↔️ Accelerating
• Fats provide energy storage and support organ development.


  True
• Variations in growth-related genes can lead to genetic disorders.


  True
• Match the environmental factor with its effect on growth:

  Temperature ↔️ Increases growth at warmer levels

  Light ↔️ Influences activity and energy expenditure

  Humidity ↔️ Essential for hydration and metabolic processes

  Predator Presence ↔️ Stress inhibits growth
• What are the key environmental factors affecting animal growth?

  Temperature, light, humidity, predators
• During the embryonic stage, rapid cell division leads to tissue differentiation
• In adulthood, animal growth typically slows down or stops due to the maintenance of size
• Linear growth occurs at a constant
• Fats provide energy storage and support organ development
• Insulin-like Growth Factors (IGFs) promote cell division and tissue growth
• Growth rate is highest during childhood in animals.

  False
• In exponential growth, the size or mass increases by the same amount in each time period.

  False
• Nutrient deficiencies can lead to stunted growth in animals.


  True
• Hormonal imbalances can cause developmental delays in animals.

  True
• Insulin-like Growth Factors (IGFs) promote cell division and tissue growth
• What is the role of genes in animal growth?

  Regulate cell processes
• Match the life stage with its key processes and growth rate:

  Embryonic ↔️ Rapid cell division, High growth rate

  Childhood ↔️ Organ development, Moderate growth rate

  Adulthood ↔️ Maintenance of size, Low to no growth
• Exponential growth increases by a multiplying factor in each time period.


  True
• What role do carbohydrates play in animal growth?

  Supply energy
• What role do Thyroid Hormones play in animal growth?

  Regulate metabolism
• High stress levels due to predators can inhibit animal growth.


  True
• An animal's genetic makeup inherited from its parents determines its growth potential.


  True
• A lizard in a temperate climate grows faster than one in a desert due to better temperature and hydration.


  True
• Growth rates are highest during the juvenile stage of animal development.

  False
• Animal growth involves the division and differentiation of cells.


  True
• Exponential growth involves a multiplying factor that increases over time.

  True
• Protein deficiencies can lead to stunted growth and weakened muscles in animals.


  True
• Hormonal imbalances can lead to developmental delays and health problems in animals.


  True
• Imbalances in growth-related hormones can lead to issues like stunted growth or developmental delays.


  True
• A lizard in a temperate climate can grow faster than one in a desert due to better temperature and hydration.


  True
• Weighing an animal determines its total body mass
• Tracking growth stages helps biologists monitor wildlife populations
• What are the methods used to measure animal growth?

  Length, mass, volume