Previous Year Questions
Practice Questions
Browse and practice real questions from previous scholarship exams. Use filters to narrow down by year, subject, or exam.
Displaying 636 - 640 of 1956
Q. 480
The preserved remains or traces of organisms from the remote past are called what, and are important evidence for evolution?
Q. 481
Organisms that break down dead and decaying organic matter, recycling nutrients back into the ecosystem, are called what?
Q. 482
According to the 10% law of energy transfer in a food chain, if producers have 1000 units of energy, how much energy is available to the primary consumers?
Q. 483
What are organisms called that can produce their own food using sunlight, such as green plants?
Q. 484
What is the process called by which excessive nutrients (like from fertiliser runoff) cause dense growth of algae in a water body, depleting oxygen?