Lesson5.2 Energy through the ecosystem: the ten per cent rule, where the rest goes, and pyramidsPart of MYP Biology 4–5
How to start
Sign in. Use Google for a one-tap start, or choose Register Now to make an account with your email.
Join the course. On the course page choose Self-Study or Marked & Mentored. Until 28 February 2027 the code STADIRA100 covers the full price of every school course.
Carry on here. After you sign in you come straight back to this lesson, and your progress is saved.
What you get
Lessons written and checked by qualified teachers
Quizzes with worked answers, so you see where a mark is won or lost
Lesson5.2 Energy through the ecosystem: the ten per cent rule, where the rest goes, and pyramidsPart of MYP Biology 4–5
How to start
Sign in. Use Google for a one-tap start, or choose Register Now to make an account with your email.
Join the course. On the course page choose Self-Study or Marked & Mentored. Until 28 February 2027 the code STADIRA100 covers the full price of every school course.
Carry on here. After you sign in you come straight back to this lesson, and your progress is saved.
What you get
Lessons written and checked by qualified teachers
Quizzes with worked answers, so you see where a mark is won or lost