Growth and Development
GCE Biology

a) Define the term 'growth' as used in biology. (2 marks) b) State FOUR characteristics of growth in living organisms. (4 marks) c) Describe the sigmoid (S-shaped) growth curve, explaining what occurs…

a) Explain the term 'metamorphosis' in insects. (2 marks) b) With the aid of a labelled diagram, describe the life cycle of a named insect that undergoes complete metamorphosis (holometabolous develop…

The region of most active cell division in the root tip of a flowering plant is the

Which hormone is primarily responsible for apical dominance in plants, where the presence of the terminal bud suppresses the growth of lateral buds?

Which of the following correctly describes the sigmoid growth curve of a population?

Metamorphosis in insects such as the housefly (Musca domestica) is described as holometabolous because it involves

A botanist recorded the following fresh masses of a plant shoot over five weeks: Week 0 = 4 g, Week 1 = 8 g, Week 2 = 16 g, Week 3 = 32 g, Week 4 = 64 g. Which mathematical expression correctly repres…

In an experiment, the dry mass of germinating seeds was measured daily. On day 1 the dry mass was 5.0 g, and by day 4 it had fallen to 2.0 g. Which of the following best explains this observation?

A seedling measured 2 cm at the end of week 1 and 8 cm at the end of week 3. What is the mean growth rate of the seedling over this period?