Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the first source of energy in an ecosystem?
💡 Hint: Think about where plants get their energy.
Question 2
Easy
What do we call organisms that produce their own food?
💡 Hint: These include plants and some bacteria.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the primary source of energy for biological activities on Earth?
- The Moon
- The Sun
- Geothermal Energy
💡 Hint: Consider where plants obtain their energy.
Question 2
True or False: Energy flow in an ecosystem is cyclic.
- True
- False
💡 Hint: Think about the direction energy travels through the ecosystem.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a given ecosystem, the primary producers capture 1000 J of solar energy. If each trophic level loses 90% of energy, calculate the energy available to secondary consumers.
💡 Hint: Use the percentage to determine the energy retained at each level.
Question 2
Critically analyze how energy flow models can impact our understanding of ecological conservation efforts.
💡 Hint: Consider how energy prediction can guide conservation strategies.
Challenge and get performance evaluation