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 does the term 'unicellular' mean?
💡 Hint: Think about how many cells make up these organisms.
Question 2
Easy
How long ago did life start on Earth?
💡 Hint: Consider the geological time scale.
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
How many years ago did life start on Earth?
- 2 billion years
- 3.5 to 4 billion years
- 1 million years
💡 Hint: Think about the oldest fossil evidence.
Question 2
True or False: All early life forms were multicellular.
- True
- False
💡 Hint: Consider the definitions of unicellular and multicellular.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Explain how the concept of the primordial soup relates to the origin of life and cite examples of experiments that support this hypothesis.
💡 Hint: Think about how early Earth conditions were replicated in the lab.
Question 2
Compare the evolutionary significance of unicellular organisms with that of complex multicellular organisms.
💡 Hint: Consider how evolution from simple to complex forms reflects adaptation and survival.
Challenge and get performance evaluation